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Caudal filaments Stock Photos and Images
Minnow mayfly nymph (Ephemeroptera, family Baetidae) abdomen and caudal filaments detail, Europe, May, controlled conditions Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/minnow-mayfly-nymph-ephemeroptera-family-baetidae-abdomen-and-caudal-filaments-detail-europe-may-controlled-conditions-image262934550.htmlRMW7NKKJ–Minnow mayfly nymph (Ephemeroptera, family Baetidae) abdomen and caudal filaments detail, Europe, May, controlled conditions
The Mayfly is one of the most primitive of the insect family. They have a nymphal stagein water where they are normally predatory. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-mayfly-is-one-of-the-most-primitive-of-the-insect-family-they-have-a-nymphal-stagein-water-where-they-are-normally-predatory-image327144875.htmlRM2A06MHF–The Mayfly is one of the most primitive of the insect family. They have a nymphal stagein water where they are normally predatory.
Detail of the razor sharp hooked spines near the tail of a orangespine unicornfish, Naso lituratus. Photographed at night off the island of Guam, Micr Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/detail-of-the-razor-sharp-hooked-spines-near-the-tail-of-a-orangespine-unicornfish-naso-lituratus-photographed-at-night-off-the-island-of-guam-micr-image614912907.htmlRM2XMBKK7–Detail of the razor sharp hooked spines near the tail of a orangespine unicornfish, Naso lituratus. Photographed at night off the island of Guam, Micr
Mayfly Ephemeroptera Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/mayfly-ephemeroptera-image366453339.htmlRF2C85AY7–Mayfly Ephemeroptera
Memoirs of the National Academy of Sciences . Fig. 87.—Pupa of Maenirocamixt rnarlhebia,fiid ol btidy of ,/. Fig. 88 —Pap.a fif Macriimcamita marthi^gin, up.,spiracle; end of body of 9 ? Thecremaster bears two very stout, diverging si>ines, conical, corrugated on the surface; theyare unarmed, being siini>le, with no accessory spinules, except minute rudimentary ones on theinside. Length, 18 mm. Habits.—The caterpillar of this moth is one of the most interesting among the Ntjtodoutians,since it connects Cerura with the other genera, by reason of its two long caudal filaments, .somuch like Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/memoirs-of-the-national-academy-of-sciences-fig-87pupa-of-maenirocamixt-rnarlhebiafiid-ol-btidy-of-fig-88-papa-fif-macriimcamita-marthigin-upspiracle-end-of-body-of-9-thecremaster-bears-two-very-stout-diverging-sigtines-conical-corrugated-on-the-surface-theyare-unarmed-being-siinigtle-with-no-accessory-spinules-except-minute-rudimentary-ones-on-theinside-length-18-mm-habitsthe-caterpillar-of-this-moth-is-one-of-the-most-interesting-among-the-ntjtodoutianssince-it-connects-cerura-with-the-other-genera-by-reason-of-its-two-long-caudal-filaments-somuch-like-image339181452.htmlRM2AKR1B8–Memoirs of the National Academy of Sciences . Fig. 87.—Pupa of Maenirocamixt rnarlhebia,fiid ol btidy of ,/. Fig. 88 —Pap.a fif Macriimcamita marthi^gin, up.,spiracle; end of body of 9 ? Thecremaster bears two very stout, diverging si>ines, conical, corrugated on the surface; theyare unarmed, being siini>le, with no accessory spinules, except minute rudimentary ones on theinside. Length, 18 mm. Habits.—The caterpillar of this moth is one of the most interesting among the Ntjtodoutians,since it connects Cerura with the other genera, by reason of its two long caudal filaments, .somuch like
![. Electron microscopy; proceedings of the Stockholm Conference, September, 1956 . Fig. 3. Length-section tiirougii one of the two mitochondria in the middle piece with the mitochondrial membranes as folds from a homogeneous part. Magnification 94,000. Fig. 4. Cross-section through the middle piece of the sper- matid showing the characteristic arrangement of the two mitochondria and the tail filaments. Note also the "caudal sheath" like tubiili near the mitochondria. Magnification X 112,000. bulges into the mitochondrial half along the central axis. The two central filaments are alway Stock Photo](https://c8.alamy.com/comp/MA7AA3/electron-microscopy-proceedings-of-the-stockholm-conference-september-1956-fig-3-length-section-tiirougii-one-of-the-two-mitochondria-in-the-middle-piece-with-the-mitochondrial-membranes-as-folds-from-a-homogeneous-part-magnification-94000-fig-4-cross-section-through-the-middle-piece-of-the-sper-matid-showing-the-characteristic-arrangement-of-the-two-mitochondria-and-the-tail-filaments-note-also-the-quotcaudal-sheathquot-like-tubiili-near-the-mitochondria-magnification-x-112000-bulges-into-the-mitochondrial-half-along-the-central-axis-the-two-central-filaments-are-alway-MA7AA3.jpg ". Electron microscopy; proceedings of the Stockholm Conference, September, 1956 . Fig. 3. Length-section tiirougii one of the two mitochondria in the middle piece with the mitochondrial membranes as folds from a homogeneous part. Magnification 94,000. Fig. 4. Cross-section through the middle piece of the sper- matid showing the characteristic arrangement of the two mitochondria and the tail filaments. Note also the "caudal sheath" like tubiili near the mitochondria. Magnification X 112,000. bulges into the mitochondrial half along the central axis. The two central filaments are alway Stock Photo")
. Electron microscopy; proceedings of the Stockholm Conference, September, 1956 . Fig. 3. Length-section tiirougii one of the two mitochondria in the middle piece with the mitochondrial membranes as folds from a homogeneous part. Magnification 94,000. Fig. 4. Cross-section through the middle piece of the sper- matid showing the characteristic arrangement of the two mitochondria and the tail filaments. Note also the "caudal sheath" like tubiili near the mitochondria. Magnification X 112,000. bulges into the mitochondrial half along the central axis. The two central filaments are alway Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/electron-microscopy-proceedings-of-the-stockholm-conference-september-1956-fig-3-length-section-tiirougii-one-of-the-two-mitochondria-in-the-middle-piece-with-the-mitochondrial-membranes-as-folds-from-a-homogeneous-part-magnification-94000-fig-4-cross-section-through-the-middle-piece-of-the-sper-matid-showing-the-characteristic-arrangement-of-the-two-mitochondria-and-the-tail-filaments-note-also-the-quotcaudal-sheathquot-like-tubiili-near-the-mitochondria-magnification-x-112000-bulges-into-the-mitochondrial-half-along-the-central-axis-the-two-central-filaments-are-alway-image178412027.htmlRMMA7AA3–. Electron microscopy; proceedings of the Stockholm Conference, September, 1956 . Fig. 3. Length-section tiirougii one of the two mitochondria in the middle piece with the mitochondrial membranes as folds from a homogeneous part. Magnification 94,000. Fig. 4. Cross-section through the middle piece of the sper- matid showing the characteristic arrangement of the two mitochondria and the tail filaments. Note also the "caudal sheath" like tubiili near the mitochondria. Magnification X 112,000. bulges into the mitochondrial half along the central axis. The two central filaments are alway
Discovery reports (1962) Discovery reports discoveryreports31inst Year: 1962 Bb Text-fig. 43. The development of the body muscles, gill filaments and brain of (a, a', a') Maurolicus muelleri; (Bb, Bbb) Cyclothone braueri, and (b, Bm, Bbm) C. microdon. In A and B, which are transverse sections through the body just in front of the caudal peduncle, the muscle fibres are shown in black and are drawn to scale. The drawings of the gill filaments are from the lower part of the first gill arch, fb, forebrain; mb, midbrain; cb, cerebellum, (a, b, x 15; a', Bm, Bb, X20; a', Bbb, Bbm, x 9.) Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/discovery-reports-1962-discovery-reports-discoveryreports31inst-year-1962-bb-text-fig-43-the-development-of-the-body-muscles-gill-filaments-and-brain-of-a-a-a-maurolicus-muelleri-bb-bbb-cyclothone-braueri-and-b-bm-bbm-c-microdon-in-a-and-b-which-are-transverse-sections-through-the-body-just-in-front-of-the-caudal-peduncle-the-muscle-fibres-are-shown-in-black-and-are-drawn-to-scale-the-drawings-of-the-gill-filaments-are-from-the-lower-part-of-the-first-gill-arch-fb-forebrain-mb-midbrain-cb-cerebellum-a-b-x-15-a-bm-bb-x20-a-bbb-bbm-x-9-image241942955.htmlRMT1HCKR–Discovery reports (1962) Discovery reports discoveryreports31inst Year: 1962 Bb Text-fig. 43. The development of the body muscles, gill filaments and brain of (a, a', a') Maurolicus muelleri; (Bb, Bbb) Cyclothone braueri, and (b, Bm, Bbm) C. microdon. In A and B, which are transverse sections through the body just in front of the caudal peduncle, the muscle fibres are shown in black and are drawn to scale. The drawings of the gill filaments are from the lower part of the first gill arch, fb, forebrain; mb, midbrain; cb, cerebellum, (a, b, x 15; a', Bm, Bb, X20; a', Bbb, Bbm, x 9.)
The Mayfly is one of the most primitive of the insect family. They have a nymphal stagein water where they are normally predatory. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-mayfly-is-one-of-the-most-primitive-of-the-insect-family-they-have-a-nymphal-stagein-water-where-they-are-normally-predatory-image327144946.htmlRM2A06MM2–The Mayfly is one of the most primitive of the insect family. They have a nymphal stagein water where they are normally predatory.
The Small Minnow mayfly is part of a large family and the commonest in the region. The long legs on the male are for clasping females in flight. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-small-minnow-mayfly-is-part-of-a-large-family-and-the-commonest-in-the-region-the-long-legs-on-the-male-are-for-clasping-females-in-flight-image490329841.htmlRM2KDMCM1–The Small Minnow mayfly is part of a large family and the commonest in the region. The long legs on the male are for clasping females in flight.
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. WALTER N. HESS. LO— tile elements, the caudal filaments (Fig. 8, C, F), which are used in propelling the body forward. On the lateral sides of the eighth abdominal sternite are two luminous areas, the larval light-organs (LO}. Resembling to a certain extent the habits of the adults, these larvae unless disturbed were not found active during the daytime. At this time they are usually under- neath stones or concealed in de- pressions in the ground. At night they become active and their light can be frequently seen as they wand Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-biological-bulletin-biology-zoology-biology-marine-biology-walter-n-hess-lo-tile-elements-the-caudal-filaments-fig-8-c-f-which-are-used-in-propelling-the-body-forward-on-the-lateral-sides-of-the-eighth-abdominal-sternite-are-two-luminous-areas-the-larval-light-organs-lo-resembling-to-a-certain-extent-the-habits-of-the-adults-these-larvae-unless-disturbed-were-not-found-active-during-the-daytime-at-this-time-they-are-usually-under-neath-stones-or-concealed-in-de-pressions-in-the-ground-at-night-they-become-active-and-their-light-can-be-frequently-seen-as-they-wand-image234676229.htmlRMRHPBWW–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. WALTER N. HESS. LO— tile elements, the caudal filaments (Fig. 8, C, F), which are used in propelling the body forward. On the lateral sides of the eighth abdominal sternite are two luminous areas, the larval light-organs (LO}. Resembling to a certain extent the habits of the adults, these larvae unless disturbed were not found active during the daytime. At this time they are usually under- neath stones or concealed in de- pressions in the ground. At night they become active and their light can be frequently seen as they wand
 Maurolicus muelleri; (Bb, Bbb) Cyclothone braueri, and (b, Bm, Bbm) C. microdon. In A and B, which are transverse sections through the body just in front of the caudal peduncle, the muscle fibres are shown in black and are drawn to scale. The drawings of the gill filaments are from the lower part of the first gill arch, fb, forebrain; mb, midbrain; cb, cerebellum, (a, b, x 15; a', Bm, Bb, X20; a", Bbb, Bbm, x 9.) Stock Photo")
. Text-fig. 43. The development of the body muscles, gill filaments and brain of (a, a', a") Maurolicus muelleri; (Bb, Bbb) Cyclothone braueri, and (b, Bm, Bbm) C. microdon. In A and B, which are transverse sections through the body just in front of the caudal peduncle, the muscle fibres are shown in black and are drawn to scale. The drawings of the gill filaments are from the lower part of the first gill arch, fb, forebrain; mb, midbrain; cb, cerebellum, (a, b, x 15; a', Bm, Bb, X20; a", Bbb, Bbm, x 9.) Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/text-fig-43-the-development-of-the-body-muscles-gill-filaments-and-brain-of-a-a-aquot-maurolicus-muelleri-bb-bbb-cyclothone-braueri-and-b-bm-bbm-c-microdon-in-a-and-b-which-are-transverse-sections-through-the-body-just-in-front-of-the-caudal-peduncle-the-muscle-fibres-are-shown-in-black-and-are-drawn-to-scale-the-drawings-of-the-gill-filaments-are-from-the-lower-part-of-the-first-gill-arch-fb-forebrain-mb-midbrain-cb-cerebellum-a-b-x-15-a-bm-bb-x20-aquot-bbb-bbm-x-9-image179952167.htmlRMMCNER3–. Text-fig. 43. The development of the body muscles, gill filaments and brain of (a, a', a") Maurolicus muelleri; (Bb, Bbb) Cyclothone braueri, and (b, Bm, Bbm) C. microdon. In A and B, which are transverse sections through the body just in front of the caudal peduncle, the muscle fibres are shown in black and are drawn to scale. The drawings of the gill filaments are from the lower part of the first gill arch, fb, forebrain; mb, midbrain; cb, cerebellum, (a, b, x 15; a', Bm, Bb, X20; a", Bbb, Bbm, x 9.)
. Bulletin. Natural history; Natural history. 94 Illinois Natural HISTOR^ Survi-y Bulletin Vol. 26, Art. 1 forccps-likf at tin- apex; the head is flattencil; all the ^jills are ilouhle and lanceo- late, diminishing in size from abdominal segment 1 to 7; the posterolateral angles of abdominal segments 2-9 are produced as slender spines; the three caudal filaments are of the same length. These characters are drawn from Peruvian specimens in the Cornell University collection iletcrmined as of this genus by Ncedham & Murphy. Thranlodfs sptciosus Traver (19.U:201), described from Texas, and ari Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-natural-history-natural-history-94-illinois-natural-histor-survi-y-bulletin-vol-26-art-1-forccps-likf-at-tin-apex-the-head-is-flattencil-all-the-jills-are-ilouhle-and-lanceo-late-diminishing-in-size-from-abdominal-segment-1-to-7-the-posterolateral-angles-of-abdominal-segments-2-9-are-produced-as-slender-spines-the-three-caudal-filaments-are-of-the-same-length-these-characters-are-drawn-from-peruvian-specimens-in-the-cornell-university-collection-iletcrmined-as-of-this-genus-by-ncedham-amp-murphy-thranlodfs-sptciosus-traver-19u201-described-from-texas-and-ari-image234119986.htmlRMRGW2C2–. Bulletin. Natural history; Natural history. 94 Illinois Natural HISTOR^ Survi-y Bulletin Vol. 26, Art. 1 forccps-likf at tin- apex; the head is flattencil; all the ^jills are ilouhle and lanceo- late, diminishing in size from abdominal segment 1 to 7; the posterolateral angles of abdominal segments 2-9 are produced as slender spines; the three caudal filaments are of the same length. These characters are drawn from Peruvian specimens in the Cornell University collection iletcrmined as of this genus by Ncedham & Murphy. Thranlodfs sptciosus Traver (19.U:201), described from Texas, and ari
![. Electron microscopy; proceedings of the Stockholm Conference, September, 1956 . Fig. 2. Detail of a head with part of the "caudal sheath" and the nuclear material. Magnification 103,000. acrosomal region consists of at least four different parts, the mutual relations of which are not entirely clear in this material. The acrosomal barbs have a homogeneous texture. The nucleus, as seen in fig. 1., has a strikingly regular ultrastructure. There are many uniformly thick opaque filaments in a parallel arrangement oriented along the long axis of the nucleus. In a transverse section at th Stock Photo](https://c8.alamy.com/comp/MA7A9Y/electron-microscopy-proceedings-of-the-stockholm-conference-september-1956-fig-2-detail-of-a-head-with-part-of-the-quotcaudal-sheathquot-and-the-nuclear-material-magnification-103000-acrosomal-region-consists-of-at-least-four-different-parts-the-mutual-relations-of-which-are-not-entirely-clear-in-this-material-the-acrosomal-barbs-have-a-homogeneous-texture-the-nucleus-as-seen-in-fig-1-has-a-strikingly-regular-ultrastructure-there-are-many-uniformly-thick-opaque-filaments-in-a-parallel-arrangement-oriented-along-the-long-axis-of-the-nucleus-in-a-transverse-section-at-th-MA7A9Y.jpg ". Electron microscopy; proceedings of the Stockholm Conference, September, 1956 . Fig. 2. Detail of a head with part of the "caudal sheath" and the nuclear material. Magnification 103,000. acrosomal region consists of at least four different parts, the mutual relations of which are not entirely clear in this material. The acrosomal barbs have a homogeneous texture. The nucleus, as seen in fig. 1., has a strikingly regular ultrastructure. There are many uniformly thick opaque filaments in a parallel arrangement oriented along the long axis of the nucleus. In a transverse section at th Stock Photo")
. Electron microscopy; proceedings of the Stockholm Conference, September, 1956 . Fig. 2. Detail of a head with part of the "caudal sheath" and the nuclear material. Magnification 103,000. acrosomal region consists of at least four different parts, the mutual relations of which are not entirely clear in this material. The acrosomal barbs have a homogeneous texture. The nucleus, as seen in fig. 1., has a strikingly regular ultrastructure. There are many uniformly thick opaque filaments in a parallel arrangement oriented along the long axis of the nucleus. In a transverse section at th Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/electron-microscopy-proceedings-of-the-stockholm-conference-september-1956-fig-2-detail-of-a-head-with-part-of-the-quotcaudal-sheathquot-and-the-nuclear-material-magnification-103000-acrosomal-region-consists-of-at-least-four-different-parts-the-mutual-relations-of-which-are-not-entirely-clear-in-this-material-the-acrosomal-barbs-have-a-homogeneous-texture-the-nucleus-as-seen-in-fig-1-has-a-strikingly-regular-ultrastructure-there-are-many-uniformly-thick-opaque-filaments-in-a-parallel-arrangement-oriented-along-the-long-axis-of-the-nucleus-in-a-transverse-section-at-th-image178412023.htmlRMMA7A9Y–. Electron microscopy; proceedings of the Stockholm Conference, September, 1956 . Fig. 2. Detail of a head with part of the "caudal sheath" and the nuclear material. Magnification 103,000. acrosomal region consists of at least four different parts, the mutual relations of which are not entirely clear in this material. The acrosomal barbs have a homogeneous texture. The nucleus, as seen in fig. 1., has a strikingly regular ultrastructure. There are many uniformly thick opaque filaments in a parallel arrangement oriented along the long axis of the nucleus. In a transverse section at th
. Class book of economic entomology, with special reference to the economic insects of the northern United States and Canada. Beneficial insects; Insect pests; Insects; Insects. 98 ECONOMIC ENTOMOLOGY DD. Abdomen without external lateral gills. E. Lower lip strong extensile and furnished with a pair of opposable hooks; abdomen terminated by 3 leaf-like tracheal gills, or vnth 5 spine-like appendages.— Odonata. EE. Lower lip not extensile and without hooks; caudal filaments and antennae long and slender; thorax with 3 pairs of tracheal gills.—Flecoptera. On account, however, of their common occ Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/class-book-of-economic-entomology-with-special-reference-to-the-economic-insects-of-the-northern-united-states-and-canada-beneficial-insects-insect-pests-insects-insects-98-economic-entomology-dd-abdomen-without-external-lateral-gills-e-lower-lip-strong-extensile-and-furnished-with-a-pair-of-opposable-hooks-abdomen-terminated-by-3-leaf-like-tracheal-gills-or-vnth-5-spine-like-appendages-odonata-ee-lower-lip-not-extensile-and-without-hooks-caudal-filaments-and-antennae-long-and-slender-thorax-with-3-pairs-of-tracheal-gillsflecoptera-on-account-however-of-their-common-occ-image232774058.htmlRMREKNK6–. Class book of economic entomology, with special reference to the economic insects of the northern United States and Canada. Beneficial insects; Insect pests; Insects; Insects. 98 ECONOMIC ENTOMOLOGY DD. Abdomen without external lateral gills. E. Lower lip strong extensile and furnished with a pair of opposable hooks; abdomen terminated by 3 leaf-like tracheal gills, or vnth 5 spine-like appendages.— Odonata. EE. Lower lip not extensile and without hooks; caudal filaments and antennae long and slender; thorax with 3 pairs of tracheal gills.—Flecoptera. On account, however, of their common occ
![. Class book of economic entomology. Insects, Injurious and beneficial. [from old catalog]; Insects; Insects. gS ECONOMIC ENTOMOLOGY DD. Abdomen without external lateral gills. E. Lower lip strong extensile and furnished with a pair of opposable hooks; abdomen terminated by 3 leaf-like tracheal gills, or with 5 spine-like appendages.— Odonata. EE. Lower lip not extensile and without hooks; caudal filaments and antennae long and slender; thorax with 3 pairs of tracheal gills.—Plecoptera. On account, however, of their common occurrence the economic entomologist should know a little at least rega Stock Photo](https://c8.alamy.com/comp/REKMFT/class-book-of-economic-entomology-insects-injurious-and-beneficial-from-old-catalog-insects-insects-gs-economic-entomology-dd-abdomen-without-external-lateral-gills-e-lower-lip-strong-extensile-and-furnished-with-a-pair-of-opposable-hooks-abdomen-terminated-by-3-leaf-like-tracheal-gills-or-with-5-spine-like-appendages-odonata-ee-lower-lip-not-extensile-and-without-hooks-caudal-filaments-and-antennae-long-and-slender-thorax-with-3-pairs-of-tracheal-gillsplecoptera-on-account-however-of-their-common-occurrence-the-economic-entomologist-should-know-a-little-at-least-rega-REKMFT.jpg ". Class book of economic entomology. Insects, Injurious and beneficial. [from old catalog]; Insects; Insects. gS ECONOMIC ENTOMOLOGY DD. Abdomen without external lateral gills. E. Lower lip strong extensile and furnished with a pair of opposable hooks; abdomen terminated by 3 leaf-like tracheal gills, or with 5 spine-like appendages.— Odonata. EE. Lower lip not extensile and without hooks; caudal filaments and antennae long and slender; thorax with 3 pairs of tracheal gills.—Plecoptera. On account, however, of their common occurrence the economic entomologist should know a little at least rega Stock Photo")
. Class book of economic entomology. Insects, Injurious and beneficial. [from old catalog]; Insects; Insects. gS ECONOMIC ENTOMOLOGY DD. Abdomen without external lateral gills. E. Lower lip strong extensile and furnished with a pair of opposable hooks; abdomen terminated by 3 leaf-like tracheal gills, or with 5 spine-like appendages.— Odonata. EE. Lower lip not extensile and without hooks; caudal filaments and antennae long and slender; thorax with 3 pairs of tracheal gills.—Plecoptera. On account, however, of their common occurrence the economic entomologist should know a little at least rega Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/class-book-of-economic-entomology-insects-injurious-and-beneficial-from-old-catalog-insects-insects-gs-economic-entomology-dd-abdomen-without-external-lateral-gills-e-lower-lip-strong-extensile-and-furnished-with-a-pair-of-opposable-hooks-abdomen-terminated-by-3-leaf-like-tracheal-gills-or-with-5-spine-like-appendages-odonata-ee-lower-lip-not-extensile-and-without-hooks-caudal-filaments-and-antennae-long-and-slender-thorax-with-3-pairs-of-tracheal-gillsplecoptera-on-account-however-of-their-common-occurrence-the-economic-entomologist-should-know-a-little-at-least-rega-image232773180.htmlRMREKMFT–. Class book of economic entomology. Insects, Injurious and beneficial. [from old catalog]; Insects; Insects. gS ECONOMIC ENTOMOLOGY DD. Abdomen without external lateral gills. E. Lower lip strong extensile and furnished with a pair of opposable hooks; abdomen terminated by 3 leaf-like tracheal gills, or with 5 spine-like appendages.— Odonata. EE. Lower lip not extensile and without hooks; caudal filaments and antennae long and slender; thorax with 3 pairs of tracheal gills.—Plecoptera. On account, however, of their common occurrence the economic entomologist should know a little at least rega
. Class book of economic entomology, with special reference to the economic insects of the northern United States and Canada. Beneficial insects; Insect pests; Insects; Insects. 98 ECONOMIC ENTOMOLOGY DD. Abdomen without external lateral gills. E. X-ower lip strong extensile and furnished with a pair of opposable hooks; abdomen terminated by 3 leaf-like tracheal gills, or with 5 spine-like appendages.— Odonata. EE. Lower lip not extensile and without hooks; caudal filaments and antennae long and slender; thorax with 3 pairs of tracheal giWs.—Plecoptera. On account, however, of their common occ Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/class-book-of-economic-entomology-with-special-reference-to-the-economic-insects-of-the-northern-united-states-and-canada-beneficial-insects-insect-pests-insects-insects-98-economic-entomology-dd-abdomen-without-external-lateral-gills-e-x-ower-lip-strong-extensile-and-furnished-with-a-pair-of-opposable-hooks-abdomen-terminated-by-3-leaf-like-tracheal-gills-or-with-5-spine-like-appendages-odonata-ee-lower-lip-not-extensile-and-without-hooks-caudal-filaments-and-antennae-long-and-slender-thorax-with-3-pairs-of-tracheal-giwsplecoptera-on-account-however-of-their-common-occ-image232773771.htmlRMREKN8Y–. Class book of economic entomology, with special reference to the economic insects of the northern United States and Canada. Beneficial insects; Insect pests; Insects; Insects. 98 ECONOMIC ENTOMOLOGY DD. Abdomen without external lateral gills. E. X-ower lip strong extensile and furnished with a pair of opposable hooks; abdomen terminated by 3 leaf-like tracheal gills, or with 5 spine-like appendages.— Odonata. EE. Lower lip not extensile and without hooks; caudal filaments and antennae long and slender; thorax with 3 pairs of tracheal giWs.—Plecoptera. On account, however, of their common occ
. Bulletin. Natural history; Natural history. May, 1953 Burks: The Mayflies of Illinois 185. Fig. 383. — Heptagema diahasla, mature nymph, dorsal aspect. abdomen uniformly dark brown, with mi- nute, submedian and anterolateral, light spots on tergites; abdominal sternites white, with a wide, brown, sublateral, longitudinal band near either lateral margin; gills, fig. 325, relatively slender, with filamentous tuft prominent and bushy, gills borne by seventh segment with well-developed, filamentous tuft; caudal filaments rather vaguely marked with alternating, narrow, dark and light color bands. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-natural-history-natural-history-may-1953-burks-the-mayflies-of-illinois-185-fig-383-heptagema-diahasla-mature-nymph-dorsal-aspect-abdomen-uniformly-dark-brown-with-mi-nute-submedian-and-anterolateral-light-spots-on-tergites-abdominal-sternites-white-with-a-wide-brown-sublateral-longitudinal-band-near-either-lateral-margin-gills-fig-325-relatively-slender-with-filamentous-tuft-prominent-and-bushy-gills-borne-by-seventh-segment-with-well-developed-filamentous-tuft-caudal-filaments-rather-vaguely-marked-with-alternating-narrow-dark-and-light-color-bands-image234127758.htmlRMRGWC9J–. Bulletin. Natural history; Natural history. May, 1953 Burks: The Mayflies of Illinois 185. Fig. 383. — Heptagema diahasla, mature nymph, dorsal aspect. abdomen uniformly dark brown, with mi- nute, submedian and anterolateral, light spots on tergites; abdominal sternites white, with a wide, brown, sublateral, longitudinal band near either lateral margin; gills, fig. 325, relatively slender, with filamentous tuft prominent and bushy, gills borne by seventh segment with well-developed, filamentous tuft; caudal filaments rather vaguely marked with alternating, narrow, dark and light color bands.
. Bulletin. Natural history; Natural history. May, 1953 Burks: The Mayflies of Illinois 79 antennae tan. Mesonotum brown, shaded with darker brown at apex of scutellum; thoracic pleura light brown; sternum tan, becoming white on metasternum. Each fore leg white, with faint brown shading at apexes of femur, tibia, and tarsal segments; middle and hind legs white, each with faint brown shading at apexes of tarsal segments; wings hyaline, veins C, Sc, and R^ brown at bases, light yellow distad. Abdominal ter- gum chestnut brown, the sternum white; the genital forceps and the caudal filaments white Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-natural-history-natural-history-may-1953-burks-the-mayflies-of-illinois-79-antennae-tan-mesonotum-brown-shaded-with-darker-brown-at-apex-of-scutellum-thoracic-pleura-light-brown-sternum-tan-becoming-white-on-metasternum-each-fore-leg-white-with-faint-brown-shading-at-apexes-of-femur-tibia-and-tarsal-segments-middle-and-hind-legs-white-each-with-faint-brown-shading-at-apexes-of-tarsal-segments-wings-hyaline-veins-c-sc-and-r-brown-at-bases-light-yellow-distad-abdominal-ter-gum-chestnut-brown-the-sternum-white-the-genital-forceps-and-the-caudal-filaments-white-image234120201.htmlRMRGW2KN–. Bulletin. Natural history; Natural history. May, 1953 Burks: The Mayflies of Illinois 79 antennae tan. Mesonotum brown, shaded with darker brown at apex of scutellum; thoracic pleura light brown; sternum tan, becoming white on metasternum. Each fore leg white, with faint brown shading at apexes of femur, tibia, and tarsal segments; middle and hind legs white, each with faint brown shading at apexes of tarsal segments; wings hyaline, veins C, Sc, and R^ brown at bases, light yellow distad. Abdominal ter- gum chestnut brown, the sternum white; the genital forceps and the caudal filaments white
. Bulletin. Natural history; Natural history. May, 1953 Burks: The Mayflies of Illinois 103 Nymph.—Length of body 11-13 mm., of caudal filaments 5-6 mm. Head and body cream colored, with vague, light brown markings. Tarsi ordinarily with a light brown band at base and a dark brown band at apex of each. Abdominal venter with three longitudinal, brown stripes, one median, another near each lateral margin; a brown crossband at posterior margin of sternite 9 joining the three longitudinal stripes; caudal filaments with an extremely broad, brown crossband in middle and a narrow, brown crossband at Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-natural-history-natural-history-may-1953-burks-the-mayflies-of-illinois-103-nymphlength-of-body-11-13-mm-of-caudal-filaments-5-6-mm-head-and-body-cream-colored-with-vague-light-brown-markings-tarsi-ordinarily-with-a-light-brown-band-at-base-and-a-dark-brown-band-at-apex-of-each-abdominal-venter-with-three-longitudinal-brown-stripes-one-median-another-near-each-lateral-margin-a-brown-crossband-at-posterior-margin-of-sternite-9-joining-the-three-longitudinal-stripes-caudal-filaments-with-an-extremely-broad-brown-crossband-in-middle-and-a-narrow-brown-crossband-at-image234119788.htmlRMRGW250–. Bulletin. Natural history; Natural history. May, 1953 Burks: The Mayflies of Illinois 103 Nymph.—Length of body 11-13 mm., of caudal filaments 5-6 mm. Head and body cream colored, with vague, light brown markings. Tarsi ordinarily with a light brown band at base and a dark brown band at apex of each. Abdominal venter with three longitudinal, brown stripes, one median, another near each lateral margin; a brown crossband at posterior margin of sternite 9 joining the three longitudinal stripes; caudal filaments with an extremely broad, brown crossband in middle and a narrow, brown crossband at
. Bulletin. Natural history; Natural history. May, 1953 Burks: The Mayflies of Illinois 179 ventral side near apex. Abdominal gills borne by segments 1-6 truncate at apexes, gills of seventh pair without tracheae; ab- dominal tergites usually uniformly brown, sometimes tergites with median, lighter spots faintly indicated; abdominal sternum white, sternite 8 with a median, dark brown spot at anterior margin and sternite 9 with a median, U-shaped, dark brown mark; caudal filaments uniformly tan in basal and middle areas, but usually with alternating pairs of light and dark segments toward apexe Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-natural-history-natural-history-may-1953-burks-the-mayflies-of-illinois-179-ventral-side-near-apex-abdominal-gills-borne-by-segments-1-6-truncate-at-apexes-gills-of-seventh-pair-without-tracheae-ab-dominal-tergites-usually-uniformly-brown-sometimes-tergites-with-median-lighter-spots-faintly-indicated-abdominal-sternum-white-sternite-8-with-a-median-dark-brown-spot-at-anterior-margin-and-sternite-9-with-a-median-u-shaped-dark-brown-mark-caudal-filaments-uniformly-tan-in-basal-and-middle-areas-but-usually-with-alternating-pairs-of-light-and-dark-segments-toward-apexe-image234127843.htmlRMRGWCCK–. Bulletin. Natural history; Natural history. May, 1953 Burks: The Mayflies of Illinois 179 ventral side near apex. Abdominal gills borne by segments 1-6 truncate at apexes, gills of seventh pair without tracheae; ab- dominal tergites usually uniformly brown, sometimes tergites with median, lighter spots faintly indicated; abdominal sternum white, sternite 8 with a median, dark brown spot at anterior margin and sternite 9 with a median, U-shaped, dark brown mark; caudal filaments uniformly tan in basal and middle areas, but usually with alternating pairs of light and dark segments toward apexe
. Bulletin. Natural history; Natural history. 190 Illinois Natural History Survey Bulletin Vol. 26, Art. 1. Fig. 385. — Heptagenia perfida, mature nymph, dorsal aspect. orange shading. Thorax dull brown dor- sally, light yellow ventrally. Abdomen dull brown dorsally, darker at posterior margins of tergites, sternites light yellow; posterior margin of terminal sternite produced and truncate on meson; caudal filaments light yellow, basal articulations tan. Nymph.—Fig. 385. Length of body 6-8 mm. Head slightly wider than thorax, dor- sal side of head brown, with a pair of sub- mesal, white spots Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-natural-history-natural-history-190-illinois-natural-history-survey-bulletin-vol-26-art-1-fig-385-heptagenia-perfida-mature-nymph-dorsal-aspect-orange-shading-thorax-dull-brown-dor-sally-light-yellow-ventrally-abdomen-dull-brown-dorsally-darker-at-posterior-margins-of-tergites-sternites-light-yellow-posterior-margin-of-terminal-sternite-produced-and-truncate-on-meson-caudal-filaments-light-yellow-basal-articulations-tan-nymphfig-385-length-of-body-6-8-mm-head-slightly-wider-than-thorax-dor-sal-side-of-head-brown-with-a-pair-of-sub-mesal-white-spots-image234127728.htmlRMRGWC8G–. Bulletin. Natural history; Natural history. 190 Illinois Natural History Survey Bulletin Vol. 26, Art. 1. Fig. 385. — Heptagenia perfida, mature nymph, dorsal aspect. orange shading. Thorax dull brown dor- sally, light yellow ventrally. Abdomen dull brown dorsally, darker at posterior margins of tergites, sternites light yellow; posterior margin of terminal sternite produced and truncate on meson; caudal filaments light yellow, basal articulations tan. Nymph.—Fig. 385. Length of body 6-8 mm. Head slightly wider than thorax, dor- sal side of head brown, with a pair of sub- mesal, white spots
. Bulletin. Natural history; Natural history. M: 195.^ Burks: The AIayflies of Illinois 91 longitudinal veins of fore wing stained a faint yellow-brown. Abdomen uniformly red-brown, each segment with posterior margin slightly darkened; terminal abdom- inal sternite with a relatively shallow, broad, rounded, median excavation on posterior margin; caudal filaments a faint yellowish tan. Nymph.—Length of body 7-8 mm. Head light yellow-brown, with lateral areas near eyes shaded with red-brown. Thorax light brown, yellowish laterally; legs light yellow- genitalia, figs. 202, 204, light brown; cauda Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-natural-history-natural-history-m-195-burks-the-aiayflies-of-illinois-91-longitudinal-veins-of-fore-wing-stained-a-faint-yellow-brown-abdomen-uniformly-red-brown-each-segment-with-posterior-margin-slightly-darkened-terminal-abdom-inal-sternite-with-a-relatively-shallow-broad-rounded-median-excavation-on-posterior-margin-caudal-filaments-a-faint-yellowish-tan-nymphlength-of-body-7-8-mm-head-light-yellow-brown-with-lateral-areas-near-eyes-shaded-with-red-brown-thorax-light-brown-yellowish-laterally-legs-light-yellow-genitalia-figs-202-204-light-brown-cauda-image234120018.htmlRMRGW2D6–. Bulletin. Natural history; Natural history. M: 195.^ Burks: The AIayflies of Illinois 91 longitudinal veins of fore wing stained a faint yellow-brown. Abdomen uniformly red-brown, each segment with posterior margin slightly darkened; terminal abdom- inal sternite with a relatively shallow, broad, rounded, median excavation on posterior margin; caudal filaments a faint yellowish tan. Nymph.—Length of body 7-8 mm. Head light yellow-brown, with lateral areas near eyes shaded with red-brown. Thorax light brown, yellowish laterally; legs light yellow- genitalia, figs. 202, 204, light brown; cauda
. Bulletin. Science; Natural history; Natural history. Baetodes sigillatus, new species Figures 1 and 2 Description: Nymph.—Length: body 5.0-6.0 mm; caudal filaments 4.0-5.0 mm. General color light brown with reddish-brown markings. Head light brown with brown and reddish-brown markings; occiput brown, frons and genae reddish-brown; head without setae. Thoracic nota light brown with brown and reddish-brown markings; pronotum light brown with intricate brown and reddish-brown mark- ings; mesonotum light brown with reddish-brown an- terior transverse band, and with submedian longitudi- nal brown Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-science-natural-history-natural-history-baetodes-sigillatus-new-species-figures-1-and-2-description-nymphlength-body-50-60-mm-caudal-filaments-40-50-mm-general-color-light-brown-with-reddish-brown-markings-head-light-brown-with-brown-and-reddish-brown-markings-occiput-brown-frons-and-genae-reddish-brown-head-without-setae-thoracic-nota-light-brown-with-brown-and-reddish-brown-markings-pronotum-light-brown-with-intricate-brown-and-reddish-brown-mark-ings-mesonotum-light-brown-with-reddish-brown-an-terior-transverse-band-and-with-submedian-longitudi-nal-brown-image234188296.htmlRMRH05FM–. Bulletin. Science; Natural history; Natural history. Baetodes sigillatus, new species Figures 1 and 2 Description: Nymph.—Length: body 5.0-6.0 mm; caudal filaments 4.0-5.0 mm. General color light brown with reddish-brown markings. Head light brown with brown and reddish-brown markings; occiput brown, frons and genae reddish-brown; head without setae. Thoracic nota light brown with brown and reddish-brown markings; pronotum light brown with intricate brown and reddish-brown mark- ings; mesonotum light brown with reddish-brown an- terior transverse band, and with submedian longitudi- nal brown
. Bulletin. Natural history; Natural history. 78 Illinois Natural History Survey Bulletin Vol. 26, Art. 1 to almost white; j;enital forceps tan or reil- brovvn; caudal filaments lijrht yellow or tan, articulations dark brown. Nymi'H.—Length of body 8-10 mm. Frontal tubercles of bead virtually wantinti, only faintly indicated; each ^ena slightly pro- duced above base of mandible as a small, subtriangular shelf, fiji. 179; dorsal and lateral spines of mesonotal shield long and relatively slender; mesonotal shield relatively long anil slender, with a maximum width, not including lateral spines, t Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-natural-history-natural-history-78-illinois-natural-history-survey-bulletin-vol-26-art-1-to-almost-white-jenital-forceps-tan-or-reil-brovvn-caudal-filaments-lijrht-yellow-or-tan-articulations-dark-brown-nymihlength-of-body-8-10-mm-frontal-tubercles-of-bead-virtually-wantinti-only-faintly-indicated-each-ena-slightly-pro-duced-above-base-of-mandible-as-a-small-subtriangular-shelf-fiji-179-dorsal-and-lateral-spines-of-mesonotal-shield-long-and-relatively-slender-mesonotal-shield-relatively-long-anil-slender-with-a-maximum-width-not-including-lateral-spines-t-image234120217.htmlRMRGW2M9–. Bulletin. Natural history; Natural history. 78 Illinois Natural History Survey Bulletin Vol. 26, Art. 1 to almost white; j;enital forceps tan or reil- brovvn; caudal filaments lijrht yellow or tan, articulations dark brown. Nymi'H.—Length of body 8-10 mm. Frontal tubercles of bead virtually wantinti, only faintly indicated; each ^ena slightly pro- duced above base of mandible as a small, subtriangular shelf, fiji. 179; dorsal and lateral spines of mesonotal shield long and relatively slender; mesonotal shield relatively long anil slender, with a maximum width, not including lateral spines, t
. Bulletin. Natural history; Natural history. 186 Ii.i.iNois Natural History Survey Bulletin Vol. 26, Art. 1 a pair of lunate, submesal marks on each ter^rite; posterior margins of tergites shaded with dark brown; sternites yellow, with a broad, light red, shaded area at posterior margin of each: genitalia, fig. 365, yellow, shaded with red at apexes; caudal filaments almost white, articulations brown. Nymph.—Length of body 11-13 mm. Head dark brown, with a white area on either side between compound eye and lat- eral margin of head. Each tarsal claw with a large basal tooth, ventral denticles Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-natural-history-natural-history-186-iiiinois-natural-history-survey-bulletin-vol-26-art-1-a-pair-of-lunate-submesal-marks-on-each-territe-posterior-margins-of-tergites-shaded-with-dark-brown-sternites-yellow-with-a-broad-light-red-shaded-area-at-posterior-margin-of-each-genitalia-fig-365-yellow-shaded-with-red-at-apexes-caudal-filaments-almost-white-articulations-brown-nymphlength-of-body-11-13-mm-head-dark-brown-with-a-white-area-on-either-side-between-compound-eye-and-lat-eral-margin-of-head-each-tarsal-claw-with-a-large-basal-tooth-ventral-denticles-image234127745.htmlRMRGWC95–. Bulletin. Natural history; Natural history. 186 Ii.i.iNois Natural History Survey Bulletin Vol. 26, Art. 1 a pair of lunate, submesal marks on each ter^rite; posterior margins of tergites shaded with dark brown; sternites yellow, with a broad, light red, shaded area at posterior margin of each: genitalia, fig. 365, yellow, shaded with red at apexes; caudal filaments almost white, articulations brown. Nymph.—Length of body 11-13 mm. Head dark brown, with a white area on either side between compound eye and lat- eral margin of head. Each tarsal claw with a large basal tooth, ventral denticles
. Bulletin. Natural history; Natural history. May, 1953 Burks: The Mayflies of Illinois 201 sternite produced as a broadly rounded lobe, without median emargination or excavation; caudal filaments faintly tan stained on basal articulations. Known from Illinois and Iowa. Illinois Records. — Mount Carmel: Wabash River, June 10, 1947, Burks & Sanderson, 1 $ . Oregon : Rock River, July 9, 1925, T. H. Prison, S , 12. Rock Is- land: 10<5, 9 9 (Walsh 1863:204). Rec- ords of supposed nymph: Dixon: Rock River, May 22, 1925, D. H. Thompson, 1 N. Mount Carmel: Wabash River, May 25, 1942, Mohr cSc Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-natural-history-natural-history-may-1953-burks-the-mayflies-of-illinois-201-sternite-produced-as-a-broadly-rounded-lobe-without-median-emargination-or-excavation-caudal-filaments-faintly-tan-stained-on-basal-articulations-known-from-illinois-and-iowa-illinois-records-mount-carmel-wabash-river-june-10-1947-burks-amp-sanderson-1-oregon-rock-river-july-9-1925-t-h-prison-s-12-rock-is-land-10lt5-9-9-walsh-1863204-rec-ords-of-supposed-nymph-dixon-rock-river-may-22-1925-d-h-thompson-1-n-mount-carmel-wabash-river-may-25-1942-mohr-csc-image234127642.htmlRMRGWC5E–. Bulletin. Natural history; Natural history. May, 1953 Burks: The Mayflies of Illinois 201 sternite produced as a broadly rounded lobe, without median emargination or excavation; caudal filaments faintly tan stained on basal articulations. Known from Illinois and Iowa. Illinois Records. — Mount Carmel: Wabash River, June 10, 1947, Burks & Sanderson, 1 $ . Oregon : Rock River, July 9, 1925, T. H. Prison, S , 12. Rock Is- land: 10<5, 9 9 (Walsh 1863:204). Rec- ords of supposed nymph: Dixon: Rock River, May 22, 1925, D. H. Thompson, 1 N. Mount Carmel: Wabash River, May 25, 1942, Mohr cSc
![A history of the British sessile-eyed Crustacea . THE BLASTED HEATH, FORRES. ASELLUS AQUATICUS. ISOPODA. NORMAL] A. 343 ASELLID^.. ASELLUS AQUATICUS. Specific character. Upper antennas reaching to the extremity of thepeduncle of the lower; flagellum of the lower twice the length of thepeduncle. Pereion of a greyish colour, mottled with paler markings; pedun-cle of the caudal appendages nearly half the length of the slender terminalsubequal filaments. Length of the male, nearly half an inch; female, much smaller. Oniscus aquaticus. Linn. Syst. Nat. ii. p. 1061. Roemek, Gen. Ins. pi. 30, fig. 12 Stock Photo](https://c8.alamy.com/comp/2AJECDA/a-history-of-the-british-sessile-eyed-crustacea-the-blasted-heath-forres-asellus-aquaticus-isopoda-normal-a-343-asellid-asellus-aquaticus-specific-character-upper-antennas-reaching-to-the-extremity-of-thepeduncle-of-the-lower-flagellum-of-the-lower-twice-the-length-of-thepeduncle-pereion-of-a-greyish-colour-mottled-with-paler-markings-pedun-cle-of-the-caudal-appendages-nearly-half-the-length-of-the-slender-terminalsubequal-filaments-length-of-the-male-nearly-half-an-inch-female-much-smaller-oniscus-aquaticus-linn-syst-nat-ii-p-1061-roemek-gen-ins-pi-30-fig-12-2AJECDA.jpg "A history of the British sessile-eyed Crustacea . THE BLASTED HEATH, FORRES. ASELLUS AQUATICUS. ISOPODA. NORMAL] A. 343 ASELLID^.. ASELLUS AQUATICUS. Specific character. Upper antennas reaching to the extremity of thepeduncle of the lower; flagellum of the lower twice the length of thepeduncle. Pereion of a greyish colour, mottled with paler markings; pedun-cle of the caudal appendages nearly half the length of the slender terminalsubequal filaments. Length of the male, nearly half an inch; female, much smaller. Oniscus aquaticus. Linn. Syst. Nat. ii. p. 1061. Roemek, Gen. Ins. pi. 30, fig. 12 Stock Photo")
A history of the British sessile-eyed Crustacea . THE BLASTED HEATH, FORRES. ASELLUS AQUATICUS. ISOPODA. NORMAL] A. 343 ASELLID^.. ASELLUS AQUATICUS. Specific character. Upper antennas reaching to the extremity of thepeduncle of the lower; flagellum of the lower twice the length of thepeduncle. Pereion of a greyish colour, mottled with paler markings; pedun-cle of the caudal appendages nearly half the length of the slender terminalsubequal filaments. Length of the male, nearly half an inch; female, much smaller. Oniscus aquaticus. Linn. Syst. Nat. ii. p. 1061. Roemek, Gen. Ins. pi. 30, fig. 12 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-history-of-the-british-sessile-eyed-crustacea-the-blasted-heath-forres-asellus-aquaticus-isopoda-normal-a-343-asellid-asellus-aquaticus-specific-character-upper-antennas-reaching-to-the-extremity-of-thepeduncle-of-the-lower-flagellum-of-the-lower-twice-the-length-of-thepeduncle-pereion-of-a-greyish-colour-mottled-with-paler-markings-pedun-cle-of-the-caudal-appendages-nearly-half-the-length-of-the-slender-terminalsubequal-filaments-length-of-the-male-nearly-half-an-inch-female-much-smaller-oniscus-aquaticus-linn-syst-nat-ii-p-1061-roemek-gen-ins-pi-30-fig-12-image338377910.htmlRM2AJECDA–A history of the British sessile-eyed Crustacea . THE BLASTED HEATH, FORRES. ASELLUS AQUATICUS. ISOPODA. NORMAL] A. 343 ASELLID^.. ASELLUS AQUATICUS. Specific character. Upper antennas reaching to the extremity of thepeduncle of the lower; flagellum of the lower twice the length of thepeduncle. Pereion of a greyish colour, mottled with paler markings; pedun-cle of the caudal appendages nearly half the length of the slender terminalsubequal filaments. Length of the male, nearly half an inch; female, much smaller. Oniscus aquaticus. Linn. Syst. Nat. ii. p. 1061. Roemek, Gen. Ins. pi. 30, fig. 12
The natural history of fishes, amphibians, & reptiles, or monocardian animals . r shghtlyemarginate betweenthe spinal and soft rays,the simple rays beingas numerous as thebranched ones, andhaving short loose fila-ments on their innersides ; caudal and pec-toral fins rounded; ventrals small; jaws hghtly pro-tractile. L. %etula. Bloch, pi. 293. Lachnolaimus Cuv. Anterior rays of the dorsal lengthenedinto flexible filaments. L. suillus Cuv. Catesby, ii. pi. 15. Hemiulis Sw. Body slender, fusiform; dorsal fin of equal breadth throughout, with all the rays branched and soft; caudal fin shghtly luna Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-natural-history-of-fishes-amphibians-reptiles-or-monocardian-animals-r-shghtlyemarginate-betweenthe-spinal-and-soft-raysthe-simple-rays-beingas-numerous-as-thebranched-ones-andhaving-short-loose-fila-ments-on-their-innersides-caudal-and-pec-toral-fins-rounded-ventrals-small-jaws-hghtly-pro-tractile-l-etula-bloch-pi-293-lachnolaimus-cuv-anterior-rays-of-the-dorsal-lengthenedinto-flexible-filaments-l-suillus-cuv-catesby-ii-pi-15-hemiulis-sw-body-slender-fusiform-dorsal-fin-of-equal-breadth-throughout-with-all-the-rays-branched-and-soft-caudal-fin-shghtly-luna-image340095923.htmlRM2AN8KPY–The natural history of fishes, amphibians, & reptiles, or monocardian animals . r shghtlyemarginate betweenthe spinal and soft rays,the simple rays beingas numerous as thebranched ones, andhaving short loose fila-ments on their innersides ; caudal and pec-toral fins rounded; ventrals small; jaws hghtly pro-tractile. L. %etula. Bloch, pi. 293. Lachnolaimus Cuv. Anterior rays of the dorsal lengthenedinto flexible filaments. L. suillus Cuv. Catesby, ii. pi. 15. Hemiulis Sw. Body slender, fusiform; dorsal fin of equal breadth throughout, with all the rays branched and soft; caudal fin shghtly luna
. Bulletin - United States National Museum. orward; 4 very short spines at front of each premaxillary;interorbital 4% in head measured from snout tip, level to depressedmedianly; preopercle with row of short spines along hind verticaledge, 3 on lower edge and 2 widely divergent spines at angle; operclewith 2 widely divergent spines, lower longer. Gill rakers 8-rl5,lanceolate, longer than gill filaments or 2 in eye. 60 BULLETIN 100, UNITED STATES NATIONAL MUSEUM Tubular scales 44 in lateral line to caudal base, not continued onlast; 5 scales above to spinous dorsal origin, 4 above to soft dorsa Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-united-states-national-museum-orward-4-very-short-spines-at-front-of-each-premaxillaryinterorbital-4-in-head-measured-from-snout-tip-level-to-depressedmedianly-preopercle-with-row-of-short-spines-along-hind-verticaledge-3-on-lower-edge-and-2-widely-divergent-spines-at-angle-operclewith-2-widely-divergent-spines-lower-longer-gill-rakers-8-rl5lanceolate-longer-than-gill-filaments-or-2-in-eye-60-bulletin-100-united-states-national-museum-tubular-scales-44-in-lateral-line-to-caudal-base-not-continued-onlast-5-scales-above-to-spinous-dorsal-origin-4-above-to-soft-dorsa-image336902110.htmlRM2AG3626–. Bulletin - United States National Museum. orward; 4 very short spines at front of each premaxillary;interorbital 4% in head measured from snout tip, level to depressedmedianly; preopercle with row of short spines along hind verticaledge, 3 on lower edge and 2 widely divergent spines at angle; operclewith 2 widely divergent spines, lower longer. Gill rakers 8-rl5,lanceolate, longer than gill filaments or 2 in eye. 60 BULLETIN 100, UNITED STATES NATIONAL MUSEUM Tubular scales 44 in lateral line to caudal base, not continued onlast; 5 scales above to spinous dorsal origin, 4 above to soft dorsa
The Norwegian North polar expedition, 1893-1896; scientific results . G.O.Sars aulogr. Iryktiden priv.Opmaaling Chra. PLATE XXIV. PLATE XXIV. Heterochceta compacta, G. 0. Sars. Fig. 1. Adult female, dorsal view. — 2. Same, viewed from left side. — 3. Rostral prominence, with the tentacular filaments, front view. — 4. Extremity of tail, with the caudal rami, dorsal view. — 5. Anterior antenna. — 6. Posterior antenna. — 7. Anterior lip. — 8. Posterior lip. — 9. Right mandible with palp. — 9a. Masticatory part of left mandible.^- 10. Maxilla. TheNorwegian PolarExpedition1893-96 N?5 Pl.Xinr.. G.O. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-norwegian-north-polar-expedition-1893-1896-scientific-results-gosars-aulogr-iryktiden-privopmaaling-chra-plate-xxiv-plate-xxiv-heterochceta-compacta-g-0-sars-fig-1-adult-female-dorsal-view-2-same-viewed-from-left-side-3-rostral-prominence-with-the-tentacular-filaments-front-view-4-extremity-of-tail-with-the-caudal-rami-dorsal-view-5-anterior-antenna-6-posterior-antenna-7-anterior-lip-8-posterior-lip-9-right-mandible-with-palp-9a-masticatory-part-of-left-mandible-10-maxilla-thenorwegian-polarexpedition1893-96-n5-plxinr-go-image342797057.htmlRM2AWKN41–The Norwegian North polar expedition, 1893-1896; scientific results . G.O.Sars aulogr. Iryktiden priv.Opmaaling Chra. PLATE XXIV. PLATE XXIV. Heterochceta compacta, G. 0. Sars. Fig. 1. Adult female, dorsal view. — 2. Same, viewed from left side. — 3. Rostral prominence, with the tentacular filaments, front view. — 4. Extremity of tail, with the caudal rami, dorsal view. — 5. Anterior antenna. — 6. Posterior antenna. — 7. Anterior lip. — 8. Posterior lip. — 9. Right mandible with palp. — 9a. Masticatory part of left mandible.^- 10. Maxilla. TheNorwegian PolarExpedition1893-96 N?5 Pl.Xinr.. G.O.
The Norwegian North polar expedition, 1893-1896; scientific results . G.O.Sars auitqgr. tryktiden priv.Opmaa.ling Chra. PLATE XXVII. PLATE XXVII. Augaptilus glacialis, G. 0. Sars,(continued.) Fig. 1. Rostral prominence, with the tentacular filaments, front view. — 2. Distal part of anterior antenna. — 3. Posterior antenna. — 4. Mandible with palp. — 5. Maxilla. — 6. Anterior maxilliped. — 7. Posterior maxilliped. — 8. First pair of legs. — 9. Leg of 2nd pair. — 10. Last pair of legs of male. — 11. Extremity of tail, with the caudal rami, dorsal view. The Norwegian Polar Expedition1893-96 N?5 P Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-norwegian-north-polar-expedition-1893-1896-scientific-results-gosars-auitqgr-tryktiden-privopmaaling-chra-plate-xxvii-plate-xxvii-augaptilus-glacialis-g-0-sarscontinued-fig-1-rostral-prominence-with-the-tentacular-filaments-front-view-2-distal-part-of-anterior-antenna-3-posterior-antenna-4-mandible-with-palp-5-maxilla-6-anterior-maxilliped-7-posterior-maxilliped-8-first-pair-of-legs-9-leg-of-2nd-pair-10-last-pair-of-legs-of-male-11-extremity-of-tail-with-the-caudal-rami-dorsal-view-the-norwegian-polar-expedition1893-96-n5-p-image342796000.htmlRM2AWKKP8–The Norwegian North polar expedition, 1893-1896; scientific results . G.O.Sars auitqgr. tryktiden priv.Opmaa.ling Chra. PLATE XXVII. PLATE XXVII. Augaptilus glacialis, G. 0. Sars,(continued.) Fig. 1. Rostral prominence, with the tentacular filaments, front view. — 2. Distal part of anterior antenna. — 3. Posterior antenna. — 4. Mandible with palp. — 5. Maxilla. — 6. Anterior maxilliped. — 7. Posterior maxilliped. — 8. First pair of legs. — 9. Leg of 2nd pair. — 10. Last pair of legs of male. — 11. Extremity of tail, with the caudal rami, dorsal view. The Norwegian Polar Expedition1893-96 N?5 P
The natural history of fishes, amphibians, & reptiles, or monocardian animals . rontalis. lb. 328.ruficauda. lb. 328.quadricornis. lb. 329.variolatus? lb. 346.fraenatus. lb. 342. quadripinnis. Rupp.28. 2.Sebse. lb. p. 323.castaneus. lb. 324.fasciatus. lb. 324.Cyclops. lb. 32. Rupiscartes Nob. Body anguiUiform ; dorsal low^ sub-divided; caudal fin not attached to the dorsal; ventralfins perfect^ of three soft rays^ and one spinous^ fullydeveloped; mouth oblique^ directed downwards.R. Alticus. C. V. xi. 337.* CirripectesNob. Body short; profile vertical; a semicircleof filaments round the nape; Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-natural-history-of-fishes-amphibians-reptiles-or-monocardian-animals-rontalis-lb-328ruficauda-lb-328quadricornis-lb-329variolatus-lb-346fraenatus-lb-342-quadripinnis-rupp28-2sebse-lb-p-323castaneus-lb-324fasciatus-lb-324cyclops-lb-32-rupiscartes-nob-body-anguiuiform-dorsal-low-sub-divided-caudal-fin-not-attached-to-the-dorsal-ventralfins-perfect-of-three-soft-rays-and-one-spinous-fullydeveloped-mouth-oblique-directed-downwardsr-alticus-c-v-xi-337-cirripectesnob-body-short-profile-vertical-a-semicircleof-filaments-round-the-nape-image340086206.htmlRM2AN87BX–The natural history of fishes, amphibians, & reptiles, or monocardian animals . rontalis. lb. 328.ruficauda. lb. 328.quadricornis. lb. 329.variolatus? lb. 346.fraenatus. lb. 342. quadripinnis. Rupp.28. 2.Sebse. lb. p. 323.castaneus. lb. 324.fasciatus. lb. 324.Cyclops. lb. 32. Rupiscartes Nob. Body anguiUiform ; dorsal low^ sub-divided; caudal fin not attached to the dorsal; ventralfins perfect^ of three soft rays^ and one spinous^ fullydeveloped; mouth oblique^ directed downwards.R. Alticus. C. V. xi. 337.* CirripectesNob. Body short; profile vertical; a semicircleof filaments round the nape;
Bulletin - United States National Museum . snout, greater thaa interorbitalin young to subequal with age; maxillary reaches eye, length 2% to3Xo in head; teeth uniserial, conic, 4 as canines in front of each jaw; 40 BULLETIN 100, UNITED STATES NATIONAL MUSEUM rather broad inner band of villiform teeth above and anteriorlybelow; interorbital S% to 4%, nearly level or only very slightly convex.Gill rakers 5 + 7, low knobs, 2% in gill filaments, which 2K in eye. Scales 43 to 46 in lateral line to caudal base and 3 or 4 more onlatter; 5 above, 13 or 14 below, 8 or 9 predorsal forward oppositeverti Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-united-states-national-museum-snout-greater-thaa-interorbitalin-young-to-subequal-with-age-maxillary-reaches-eye-length-2-to3xo-in-head-teeth-uniserial-conic-4-as-canines-in-front-of-each-jaw-40-bulletin-100-united-states-national-museum-rather-broad-inner-band-of-villiform-teeth-above-and-anteriorlybelow-interorbital-s-to-4-nearly-level-or-only-very-slightly-convexgill-rakers-5-7-low-knobs-2-in-gill-filaments-which-2k-in-eye-scales-43-to-46-in-lateral-line-to-caudal-base-and-3-or-4-more-onlatter-5-above-13-or-14-below-8-or-9-predorsal-forward-oppositeverti-image342828514.htmlRM2AWN57E–Bulletin - United States National Museum . snout, greater thaa interorbitalin young to subequal with age; maxillary reaches eye, length 2% to3Xo in head; teeth uniserial, conic, 4 as canines in front of each jaw; 40 BULLETIN 100, UNITED STATES NATIONAL MUSEUM rather broad inner band of villiform teeth above and anteriorlybelow; interorbital S% to 4%, nearly level or only very slightly convex.Gill rakers 5 + 7, low knobs, 2% in gill filaments, which 2K in eye. Scales 43 to 46 in lateral line to caudal base and 3 or 4 more onlatter; 5 above, 13 or 14 below, 8 or 9 predorsal forward oppositeverti
Bulletin - United States National Museum . i in head; teeth about 36above, 32 below, simple, conic, uniserial, none on palate; interorbital3% to 4, convex. Gill rakers 7 + 21, lanceolate, 1% in gill filaments,which 1% in eye.. Figure 20.—Pseudupeneus barberinoides (Bleeker), young Scales 26 to 29 in lateral line to caudal base and 2 more on latter;3 above, 5 to 7 below, 13 predorsal; 3 rows below eye to lower pre-opercle edge. Tubes of lateral line with 3 to 6 tubules. Scales with5 or 6 basal radiating striae; 60 to 131 apical denticles, with 3 to 7transverse series of basal elements; circuli Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-united-states-national-museum-i-in-head-teeth-about-36above-32-below-simple-conic-uniserial-none-on-palate-interorbital3-to-4-convex-gill-rakers-7-21-lanceolate-1-in-gill-filamentswhich-1-in-eye-figure-20pseudupeneus-barberinoides-bleeker-young-scales-26-to-29-in-lateral-line-to-caudal-base-and-2-more-on-latter3-above-5-to-7-below-13-predorsal-3-rows-below-eye-to-lower-pre-opercle-edge-tubes-of-lateral-line-with-3-to-6-tubules-scales-with5-or-6-basal-radiating-striae-60-to-131-apical-denticles-with-3-to-7transverse-series-of-basal-elements-circuli-image342824440.htmlRM2AWN020–Bulletin - United States National Museum . i in head; teeth about 36above, 32 below, simple, conic, uniserial, none on palate; interorbital3% to 4, convex. Gill rakers 7 + 21, lanceolate, 1% in gill filaments,which 1% in eye.. Figure 20.—Pseudupeneus barberinoides (Bleeker), young Scales 26 to 29 in lateral line to caudal base and 2 more on latter;3 above, 5 to 7 below, 13 predorsal; 3 rows below eye to lower pre-opercle edge. Tubes of lateral line with 3 to 6 tubules. Scales with5 or 6 basal radiating striae; 60 to 131 apical denticles, with 3 to 7transverse series of basal elements; circuli
Bulletin - United States National Museum . ^ of gill filaments.. Figure 1.—Lethrinus miniatus (Schneider), young; upper figure, head; lower, detail Scales 44 to 48 in lateral line to caudal base and 1 or 2 more onlatter; 6 above, 15 or 16 below, 9 predorsal; caudal and pectoral basesfinely scaled. Scales with 12 to 18 basal radiating striae, with 2 to 23incomplete auxiliaries; 110 to 244 apical denticles, with 5 to 8 trans-verse series of basal elements; circuU fine. D. X, 9,1, fourth spine 2% to 3^ in head, fourth ray 3 to 3K; A. Ill,8, I, third spine 3K to 4}^, first ray 3}i to 3%; caudal 1% Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-united-states-national-museum-of-gill-filaments-figure-1lethrinus-miniatus-schneider-young-upper-figure-head-lower-detail-scales-44-to-48-in-lateral-line-to-caudal-base-and-1-or-2-more-onlatter-6-above-15-or-16-below-9-predorsal-caudal-and-pectoral-basesfinely-scaled-scales-with-12-to-18-basal-radiating-striae-with-2-to-23incomplete-auxiliaries-110-to-244-apical-denticles-with-5-to-8-trans-verse-series-of-basal-elements-circuu-fine-d-x-91-fourth-spine-2-to-3-in-head-fourth-ray-3-to-3k-a-ill8-i-third-spine-3k-to-4-first-ray-3i-to-3-caudal-1-image342830102.htmlRM2AWN786–Bulletin - United States National Museum . ^ of gill filaments.. Figure 1.—Lethrinus miniatus (Schneider), young; upper figure, head; lower, detail Scales 44 to 48 in lateral line to caudal base and 1 or 2 more onlatter; 6 above, 15 or 16 below, 9 predorsal; caudal and pectoral basesfinely scaled. Scales with 12 to 18 basal radiating striae, with 2 to 23incomplete auxiliaries; 110 to 244 apical denticles, with 5 to 8 trans-verse series of basal elements; circuU fine. D. X, 9,1, fourth spine 2% to 3^ in head, fourth ray 3 to 3K; A. Ill,8, I, third spine 3K to 4}^, first ray 3}i to 3%; caudal 1%
Bulletin - United States National Museum . ^ inhead; eye 5 to 5%, 2% to 2% in snout, 1% to 1% in interorbital; maxillary-reaches % to % to eye, expansion 1 to Iji in eye, length 2% to 2% inhead; barbels reach opposite hind eye edge, length Iji to 2)^ in head;teeth conic, uniserial, none on palate; interorbital 3% to Sji, convex.Gill rakers 7 + 24, lanceolate, 1% in gill filaments, which equal eye.. FiGUEE 25.—Pseudupeneusfratercuius (Valenciennes), young Scales 26 or 27 in lateral line to caudal base and 3 or 4 more onlatter; 3 above, 6 below, 12 or 13 predorsal forward to front nostril, 3rows Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-united-states-national-museum-inhead-eye-5-to-5-2-to-2-in-snout-1-to-1-in-interorbital-maxillary-reaches-to-to-eye-expansion-1-to-iji-in-eye-length-2-to-2-inhead-barbels-reach-opposite-hind-eye-edge-length-iji-to-2-in-headteeth-conic-uniserial-none-on-palate-interorbital-3-to-sji-convexgill-rakers-7-24-lanceolate-1-in-gill-filaments-which-equal-eye-figuee-25pseudupeneusfratercuius-valenciennes-young-scales-26-or-27-in-lateral-line-to-caudal-base-and-3-or-4-more-onlatter-3-above-6-below-12-or-13-predorsal-forward-to-front-nostril-3rows-image342823511.htmlRM2AWMXTR–Bulletin - United States National Museum . ^ inhead; eye 5 to 5%, 2% to 2% in snout, 1% to 1% in interorbital; maxillary-reaches % to % to eye, expansion 1 to Iji in eye, length 2% to 2% inhead; barbels reach opposite hind eye edge, length Iji to 2)^ in head;teeth conic, uniserial, none on palate; interorbital 3% to Sji, convex.Gill rakers 7 + 24, lanceolate, 1% in gill filaments, which equal eye.. FiGUEE 25.—Pseudupeneusfratercuius (Valenciennes), young Scales 26 or 27 in lateral line to caudal base and 3 or 4 more onlatter; 3 above, 6 below, 12 or 13 predorsal forward to front nostril, 3rows
. Report on the scientific results of the voyage of H. M. S. Challenger during the years 1873-76 under the command of Captain George S. Nares... and the late Captain Frank Tourle Thomson, R. N. ir, caudal rami: Cm,adductor muscle of carapace ; Ov, ovary. Fig. 2. Eostral plate, seen from below ; magnified fifty diameters. Fig. 3. Left eye, lateral view. Fig. 4. Left antennula. Fig. 5. One of the olfactory filaments from the flagellum of same ; highly magnified. Fig. 6. Serrate projection of last segment of peduncle of same. Fig. 7. Left antenna. Fig. 8. Anterior lip, seen from below. Fig. 9. Ma Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/report-on-the-scientific-results-of-the-voyage-of-h-m-s-challenger-during-the-years-1873-76-under-the-command-of-captain-george-s-nares-and-the-late-captain-frank-tourle-thomson-r-n-ir-caudal-rami-cmadductor-muscle-of-carapace-ov-ovary-fig-2-eostral-plate-seen-from-below-magnified-fifty-diameters-fig-3-left-eye-lateral-view-fig-4-left-antennula-fig-5-one-of-the-olfactory-filaments-from-the-flagellum-of-same-highly-magnified-fig-6-serrate-projection-of-last-segment-of-peduncle-of-same-fig-7-left-antenna-fig-8-anterior-lip-seen-from-below-fig-9-ma-image370507794.htmlRM2CEP2D6–. Report on the scientific results of the voyage of H. M. S. Challenger during the years 1873-76 under the command of Captain George S. Nares... and the late Captain Frank Tourle Thomson, R. N. ir, caudal rami: Cm,adductor muscle of carapace ; Ov, ovary. Fig. 2. Eostral plate, seen from below ; magnified fifty diameters. Fig. 3. Left eye, lateral view. Fig. 4. Left antennula. Fig. 5. One of the olfactory filaments from the flagellum of same ; highly magnified. Fig. 6. Serrate projection of last segment of peduncle of same. Fig. 7. Left antenna. Fig. 8. Anterior lip, seen from below. Fig. 9. Ma
. Fishes. Fishes. 44° Percesoces and Rhegnopteri sometimes longer than the body. Two of the actinosts of the pectoral support the fin, one is slender and has no rays, while the fourth is plate-like and attached to the coracoids, support- ing the pectoral filaments. The body is rather robust, covered with large scales, formed much as in the mullet. The lateral. Fig. 347,—Shoulder-girdle of a Threadfin, Polydactylus approximans (Lay & Bennett). line extends on the caudal fin as in the SciwnidcB, which group these fishes resemble in many ways. The mouth is large, inferior, with small teeth. T Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/fishes-fishes-44-percesoces-and-rhegnopteri-sometimes-longer-than-the-body-two-of-the-actinosts-of-the-pectoral-support-the-fin-one-is-slender-and-has-no-rays-while-the-fourth-is-plate-like-and-attached-to-the-coracoids-support-ing-the-pectoral-filaments-the-body-is-rather-robust-covered-with-large-scales-formed-much-as-in-the-mullet-the-lateral-fig-347shoulder-girdle-of-a-threadfin-polydactylus-approximans-lay-amp-bennett-line-extends-on-the-caudal-fin-as-in-the-sciwnidcb-which-group-these-fishes-resemble-in-many-ways-the-mouth-is-large-inferior-with-small-teeth-t-image232218024.htmlRMRDPCCT–. Fishes. Fishes. 44° Percesoces and Rhegnopteri sometimes longer than the body. Two of the actinosts of the pectoral support the fin, one is slender and has no rays, while the fourth is plate-like and attached to the coracoids, support- ing the pectoral filaments. The body is rather robust, covered with large scales, formed much as in the mullet. The lateral. Fig. 347,—Shoulder-girdle of a Threadfin, Polydactylus approximans (Lay & Bennett). line extends on the caudal fin as in the SciwnidcB, which group these fishes resemble in many ways. The mouth is large, inferior, with small teeth. T
![. A manual of zoology for the use of students : with a general introduction on the principles of zoology . Zoology. PHARYNGOBRAN CHll. 117 ventral surface, and expands at the tail to form a lancet-shaped caudal fin. No true paired fins, representing the anterior and posterior limbs, are present. The mouth is a longitudinal fissure, situated at the front of the head, and destitute of jaws. It is surrounded by a cartilaginous ring, composed of many pieces, which give off prolongations, so as to form a number of cartilaginous filaments or " cirri" on each side of the mouth. (Hence the n Stock Photo](https://c8.alamy.com/comp/RDKM8K/a-manual-of-zoology-for-the-use-of-students-with-a-general-introduction-on-the-principles-of-zoology-zoology-pharyngobran-chll-117-ventral-surface-and-expands-at-the-tail-to-form-a-lancet-shaped-caudal-fin-no-true-paired-fins-representing-the-anterior-and-posterior-limbs-are-present-the-mouth-is-a-longitudinal-fissure-situated-at-the-front-of-the-head-and-destitute-of-jaws-it-is-surrounded-by-a-cartilaginous-ring-composed-of-many-pieces-which-give-off-prolongations-so-as-to-form-a-number-of-cartilaginous-filaments-or-quot-cirriquot-on-each-side-of-the-mouth-hence-the-n-RDKM8K.jpg ". A manual of zoology for the use of students : with a general introduction on the principles of zoology . Zoology. PHARYNGOBRAN CHll. 117 ventral surface, and expands at the tail to form a lancet-shaped caudal fin. No true paired fins, representing the anterior and posterior limbs, are present. The mouth is a longitudinal fissure, situated at the front of the head, and destitute of jaws. It is surrounded by a cartilaginous ring, composed of many pieces, which give off prolongations, so as to form a number of cartilaginous filaments or " cirri" on each side of the mouth. (Hence the n Stock Photo")
. A manual of zoology for the use of students : with a general introduction on the principles of zoology . Zoology. PHARYNGOBRAN CHll. 117 ventral surface, and expands at the tail to form a lancet-shaped caudal fin. No true paired fins, representing the anterior and posterior limbs, are present. The mouth is a longitudinal fissure, situated at the front of the head, and destitute of jaws. It is surrounded by a cartilaginous ring, composed of many pieces, which give off prolongations, so as to form a number of cartilaginous filaments or " cirri" on each side of the mouth. (Hence the n Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-manual-of-zoology-for-the-use-of-students-with-a-general-introduction-on-the-principles-of-zoology-zoology-pharyngobran-chll-117-ventral-surface-and-expands-at-the-tail-to-form-a-lancet-shaped-caudal-fin-no-true-paired-fins-representing-the-anterior-and-posterior-limbs-are-present-the-mouth-is-a-longitudinal-fissure-situated-at-the-front-of-the-head-and-destitute-of-jaws-it-is-surrounded-by-a-cartilaginous-ring-composed-of-many-pieces-which-give-off-prolongations-so-as-to-form-a-number-of-cartilaginous-filaments-or-quot-cirriquot-on-each-side-of-the-mouth-hence-the-n-image232158323.htmlRMRDKM8K–. A manual of zoology for the use of students : with a general introduction on the principles of zoology . Zoology. PHARYNGOBRAN CHll. 117 ventral surface, and expands at the tail to form a lancet-shaped caudal fin. No true paired fins, representing the anterior and posterior limbs, are present. The mouth is a longitudinal fissure, situated at the front of the head, and destitute of jaws. It is surrounded by a cartilaginous ring, composed of many pieces, which give off prolongations, so as to form a number of cartilaginous filaments or " cirri" on each side of the mouth. (Hence the n
. The tailless batrachians of Europe. Frogs; Amphibians. DEVELOPMENT AND METAMORPHOSIS. 89 front of them a small cleft, out of which the gill- filaments of the branchial arches in process of dis- appearance may often be seen projecting (Fig. 35). Pig. 35.. Alytes obstetricans, towards the end of the larval stage, showing the gills (br) protruding through the cleft in front of the arm, and the median spiraculum (sp). Then only the caudal crests become reduced and the tail gradually absorbed; the gill-arches entirely dis- appear ; the lungs, which had co-existed as accessory respiratory and hydr Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-tailless-batrachians-of-europe-frogs-amphibians-development-and-metamorphosis-89-front-of-them-a-small-cleft-out-of-which-the-gill-filaments-of-the-branchial-arches-in-process-of-dis-appearance-may-often-be-seen-projecting-fig-35-pig-35-alytes-obstetricans-towards-the-end-of-the-larval-stage-showing-the-gills-br-protruding-through-the-cleft-in-front-of-the-arm-and-the-median-spiraculum-sp-then-only-the-caudal-crests-become-reduced-and-the-tail-gradually-absorbed-the-gill-arches-entirely-dis-appear-the-lungs-which-had-co-existed-as-accessory-respiratory-and-hydr-image232422422.htmlRMRE3N4P–. The tailless batrachians of Europe. Frogs; Amphibians. DEVELOPMENT AND METAMORPHOSIS. 89 front of them a small cleft, out of which the gill- filaments of the branchial arches in process of dis- appearance may often be seen projecting (Fig. 35). Pig. 35.. Alytes obstetricans, towards the end of the larval stage, showing the gills (br) protruding through the cleft in front of the arm, and the median spiraculum (sp). Then only the caudal crests become reduced and the tail gradually absorbed; the gill-arches entirely dis- appear ; the lungs, which had co-existed as accessory respiratory and hydr
. A guide to the study of fishes. Fishes; Zoology; Fishes. Percesoces and Rhegnopteri 22c sometimes longer than the body. Two of the actinosts of the pectoral support the fin, one is slender and has no rays, while the fourth is plate-like and attached to the coracoids, support- ing the pectoral filaments. The body is rather robust, covered with large scales, formed much as in the mullet. The lateral. Fig. 178.—Shoulder-girdle of a Threadfin, Polydactylies approximans (Lay & Bennett). line extends on the caudal fin as in the Sciccnida:, which group these fishes resemble in many ways. The mo Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-guide-to-the-study-of-fishes-fishes-zoology-fishes-percesoces-and-rhegnopteri-22c-sometimes-longer-than-the-body-two-of-the-actinosts-of-the-pectoral-support-the-fin-one-is-slender-and-has-no-rays-while-the-fourth-is-plate-like-and-attached-to-the-coracoids-support-ing-the-pectoral-filaments-the-body-is-rather-robust-covered-with-large-scales-formed-much-as-in-the-mullet-the-lateral-fig-178shoulder-girdle-of-a-threadfin-polydactylies-approximans-lay-amp-bennett-line-extends-on-the-caudal-fin-as-in-the-sciccnida-which-group-these-fishes-resemble-in-many-ways-the-mo-image232139779.htmlRMRDJTJB–. A guide to the study of fishes. Fishes; Zoology; Fishes. Percesoces and Rhegnopteri 22c sometimes longer than the body. Two of the actinosts of the pectoral support the fin, one is slender and has no rays, while the fourth is plate-like and attached to the coracoids, support- ing the pectoral filaments. The body is rather robust, covered with large scales, formed much as in the mullet. The lateral. Fig. 178.—Shoulder-girdle of a Threadfin, Polydactylies approximans (Lay & Bennett). line extends on the caudal fin as in the Sciccnida:, which group these fishes resemble in many ways. The mo
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 24 Some combinations of oblique cuts gave interesting results. If the animals were sectioned along a b c (Fig. 23), the anterior part of the animal regenerated two pairs of caudal lobes with tail filaments (Fig. 24). 15. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods H Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-biological-bulletin-biology-zoology-biology-marine-biology-24-some-combinations-of-oblique-cuts-gave-interesting-results-if-the-animals-were-sectioned-along-a-b-c-fig-23-the-anterior-part-of-the-animal-regenerated-two-pairs-of-caudal-lobes-with-tail-filaments-fig-24-15-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-and-appearance-of-these-illustrations-may-not-perfectly-resemble-the-original-work-marine-biological-laboratory-woods-hole-mass-marine-biological-laboratory-woods-h-image234672841.htmlRMRHP7GW–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 24 Some combinations of oblique cuts gave interesting results. If the animals were sectioned along a b c (Fig. 23), the anterior part of the animal regenerated two pairs of caudal lobes with tail filaments (Fig. 24). 15. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods H
![. Electron microscopy; proceedings of the Stockholm Conference, September, 1956. Electron microscopy. 166 F. S. SJOSTRAND AND B. A. AFZELIUS. Fig. 3. Length-section tiirougii one of the two mitochondria in the middle piece with the mitochondrial membranes as folds from a homogeneous part. Magnification 94,000. Fig. 4. Cross-section through the middle piece of the sper- matid showing the characteristic arrangement of the two mitochondria and the tail filaments. Note also the "caudal sheath" like tubiili near the mitochondria. Magnification X 112,000. bulges into the mitochondrial half Stock Photo](https://c8.alamy.com/comp/RD5WCF/electron-microscopy-proceedings-of-the-stockholm-conference-september-1956-electron-microscopy-166-f-s-sjostrand-and-b-a-afzelius-fig-3-length-section-tiirougii-one-of-the-two-mitochondria-in-the-middle-piece-with-the-mitochondrial-membranes-as-folds-from-a-homogeneous-part-magnification-94000-fig-4-cross-section-through-the-middle-piece-of-the-sper-matid-showing-the-characteristic-arrangement-of-the-two-mitochondria-and-the-tail-filaments-note-also-the-quotcaudal-sheathquot-like-tubiili-near-the-mitochondria-magnification-x-112000-bulges-into-the-mitochondrial-half-RD5WCF.jpg ". Electron microscopy; proceedings of the Stockholm Conference, September, 1956. Electron microscopy. 166 F. S. SJOSTRAND AND B. A. AFZELIUS. Fig. 3. Length-section tiirougii one of the two mitochondria in the middle piece with the mitochondrial membranes as folds from a homogeneous part. Magnification 94,000. Fig. 4. Cross-section through the middle piece of the sper- matid showing the characteristic arrangement of the two mitochondria and the tail filaments. Note also the "caudal sheath" like tubiili near the mitochondria. Magnification X 112,000. bulges into the mitochondrial half Stock Photo")
. Electron microscopy; proceedings of the Stockholm Conference, September, 1956. Electron microscopy. 166 F. S. SJOSTRAND AND B. A. AFZELIUS. Fig. 3. Length-section tiirougii one of the two mitochondria in the middle piece with the mitochondrial membranes as folds from a homogeneous part. Magnification 94,000. Fig. 4. Cross-section through the middle piece of the sper- matid showing the characteristic arrangement of the two mitochondria and the tail filaments. Note also the "caudal sheath" like tubiili near the mitochondria. Magnification X 112,000. bulges into the mitochondrial half Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/electron-microscopy-proceedings-of-the-stockholm-conference-september-1956-electron-microscopy-166-f-s-sjostrand-and-b-a-afzelius-fig-3-length-section-tiirougii-one-of-the-two-mitochondria-in-the-middle-piece-with-the-mitochondrial-membranes-as-folds-from-a-homogeneous-part-magnification-94000-fig-4-cross-section-through-the-middle-piece-of-the-sper-matid-showing-the-characteristic-arrangement-of-the-two-mitochondria-and-the-tail-filaments-note-also-the-quotcaudal-sheathquot-like-tubiili-near-the-mitochondria-magnification-x-112000-bulges-into-the-mitochondrial-half-image231855023.htmlRMRD5WCF–. Electron microscopy; proceedings of the Stockholm Conference, September, 1956. Electron microscopy. 166 F. S. SJOSTRAND AND B. A. AFZELIUS. Fig. 3. Length-section tiirougii one of the two mitochondria in the middle piece with the mitochondrial membranes as folds from a homogeneous part. Magnification 94,000. Fig. 4. Cross-section through the middle piece of the sper- matid showing the characteristic arrangement of the two mitochondria and the tail filaments. Note also the "caudal sheath" like tubiili near the mitochondria. Magnification X 112,000. bulges into the mitochondrial half
. Bulletin of the British Museum (Natural History). Zoology . Supplement.. CLUPEOID FISHES OF THE GUIANAS 55. Fig. 15. Rhino Sardinia amazonica (Steindachner). From Hildebrand 1964 (as R. serrata). posterior hemibranchs equal; medio-pharyngobranchial present, lobate and bearing first two to three gillrakers of upper arch ; about ten short, triangular rakers on posterior face of 3rd epibranchial. Pseudobranch present, exposed, about four- fifths of eye diameter, bearing 10-12 filaments. Dorsal fin origin equidistant between snout tip and caudal base or up to half eye diameter nearer the former Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-of-the-british-museum-natural-history-zoology-supplement-clupeoid-fishes-of-the-guianas-55-fig-15-rhino-sardinia-amazonica-steindachner-from-hildebrand-1964-as-r-serrata-posterior-hemibranchs-equal-medio-pharyngobranchial-present-lobate-and-bearing-first-two-to-three-gillrakers-of-upper-arch-about-ten-short-triangular-rakers-on-posterior-face-of-3rd-epibranchial-pseudobranch-present-exposed-about-four-fifths-of-eye-diameter-bearing-10-12-filaments-dorsal-fin-origin-equidistant-between-snout-tip-and-caudal-base-or-up-to-half-eye-diameter-nearer-the-former-image233966302.htmlRMRGJ2BA–. Bulletin of the British Museum (Natural History). Zoology . Supplement.. CLUPEOID FISHES OF THE GUIANAS 55. Fig. 15. Rhino Sardinia amazonica (Steindachner). From Hildebrand 1964 (as R. serrata). posterior hemibranchs equal; medio-pharyngobranchial present, lobate and bearing first two to three gillrakers of upper arch ; about ten short, triangular rakers on posterior face of 3rd epibranchial. Pseudobranch present, exposed, about four- fifths of eye diameter, bearing 10-12 filaments. Dorsal fin origin equidistant between snout tip and caudal base or up to half eye diameter nearer the former
![. Electron microscopy; proceedings of the Stockholm Conference, September, 1956. Electron microscopy. 1^. Fig. 2. Detail of a head with part of the "caudal sheath" and the nuclear material. Magnification 103,000. acrosomal region consists of at least four different parts, the mutual relations of which are not entirely clear in this material. The acrosomal barbs have a homogeneous texture. The nucleus, as seen in fig. 1., has a strikingly regular ultrastructure. There are many uniformly thick opaque filaments in a parallel arrangement oriented along the long axis of the nucleus. In a Stock Photo](https://c8.alamy.com/comp/RD5WCJ/electron-microscopy-proceedings-of-the-stockholm-conference-september-1956-electron-microscopy-1-fig-2-detail-of-a-head-with-part-of-the-quotcaudal-sheathquot-and-the-nuclear-material-magnification-103000-acrosomal-region-consists-of-at-least-four-different-parts-the-mutual-relations-of-which-are-not-entirely-clear-in-this-material-the-acrosomal-barbs-have-a-homogeneous-texture-the-nucleus-as-seen-in-fig-1-has-a-strikingly-regular-ultrastructure-there-are-many-uniformly-thick-opaque-filaments-in-a-parallel-arrangement-oriented-along-the-long-axis-of-the-nucleus-in-a-RD5WCJ.jpg ". Electron microscopy; proceedings of the Stockholm Conference, September, 1956. Electron microscopy. 1^. Fig. 2. Detail of a head with part of the "caudal sheath" and the nuclear material. Magnification 103,000. acrosomal region consists of at least four different parts, the mutual relations of which are not entirely clear in this material. The acrosomal barbs have a homogeneous texture. The nucleus, as seen in fig. 1., has a strikingly regular ultrastructure. There are many uniformly thick opaque filaments in a parallel arrangement oriented along the long axis of the nucleus. In a Stock Photo")
. Electron microscopy; proceedings of the Stockholm Conference, September, 1956. Electron microscopy. 1^. Fig. 2. Detail of a head with part of the "caudal sheath" and the nuclear material. Magnification 103,000. acrosomal region consists of at least four different parts, the mutual relations of which are not entirely clear in this material. The acrosomal barbs have a homogeneous texture. The nucleus, as seen in fig. 1., has a strikingly regular ultrastructure. There are many uniformly thick opaque filaments in a parallel arrangement oriented along the long axis of the nucleus. In a Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/electron-microscopy-proceedings-of-the-stockholm-conference-september-1956-electron-microscopy-1-fig-2-detail-of-a-head-with-part-of-the-quotcaudal-sheathquot-and-the-nuclear-material-magnification-103000-acrosomal-region-consists-of-at-least-four-different-parts-the-mutual-relations-of-which-are-not-entirely-clear-in-this-material-the-acrosomal-barbs-have-a-homogeneous-texture-the-nucleus-as-seen-in-fig-1-has-a-strikingly-regular-ultrastructure-there-are-many-uniformly-thick-opaque-filaments-in-a-parallel-arrangement-oriented-along-the-long-axis-of-the-nucleus-in-a-image231855026.htmlRMRD5WCJ–. Electron microscopy; proceedings of the Stockholm Conference, September, 1956. Electron microscopy. 1^. Fig. 2. Detail of a head with part of the "caudal sheath" and the nuclear material. Magnification 103,000. acrosomal region consists of at least four different parts, the mutual relations of which are not entirely clear in this material. The acrosomal barbs have a homogeneous texture. The nucleus, as seen in fig. 1., has a strikingly regular ultrastructure. There are many uniformly thick opaque filaments in a parallel arrangement oriented along the long axis of the nucleus. In a
. Bulletin - United States National Museum. Science. 34 BULLETIN 15 8, UNITED STATES NATIONAL MUSEUM Genus RHINCALANUS Dana, 1852 Head produced anteriorly into a conical process, which carries on its ventral surface the rostral filaments; head fused with the first segment; thoracic segments armed with small spines on their poste- rior margins; urosome 3-segmented, the distal segment fused with the caudal rami; first antennae much longer than the body; both rami of the first legs 2-segmented, of the second, third, and fourth legs 3-segmented; fifth legs uniramose and 3-segmented. KEY TO THE SPE Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-united-states-national-museum-science-34-bulletin-15-8-united-states-national-museum-genus-rhincalanus-dana-1852-head-produced-anteriorly-into-a-conical-process-which-carries-on-its-ventral-surface-the-rostral-filaments-head-fused-with-the-first-segment-thoracic-segments-armed-with-small-spines-on-their-poste-rior-margins-urosome-3-segmented-the-distal-segment-fused-with-the-caudal-rami-first-antennae-much-longer-than-the-body-both-rami-of-the-first-legs-2-segmented-of-the-second-third-and-fourth-legs-3-segmented-fifth-legs-uniramose-and-3-segmented-key-to-the-spe-image233740974.htmlRMRG7PYX–. Bulletin - United States National Museum. Science. 34 BULLETIN 15 8, UNITED STATES NATIONAL MUSEUM Genus RHINCALANUS Dana, 1852 Head produced anteriorly into a conical process, which carries on its ventral surface the rostral filaments; head fused with the first segment; thoracic segments armed with small spines on their poste- rior margins; urosome 3-segmented, the distal segment fused with the caudal rami; first antennae much longer than the body; both rami of the first legs 2-segmented, of the second, third, and fourth legs 3-segmented; fifth legs uniramose and 3-segmented. KEY TO THE SPE
. A course of instruction in zootomy (vertebrata). Anatomy, Comparative. 4 ZOOTOMY. 3. The fin-rays (Figs. 7 and 8,/r), delicate cartilaginous filaments, supporting the dorsal and caudal fins (§§ 29, 30). They are connected ventrally with the fibrous tissue cover- ing in the neural canal, and lie parallel to one another and inclined backwards. 4. The brain-case, or hindmost division of the skull. Posteriorly it consists of a basal or parachordal plate (Figs, i and 2, b.pt b.p'), surrounding the anterior end of the notochord, and divided by the latter into dorsal (b.p) and ventral (b.p') portio Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-course-of-instruction-in-zootomy-vertebrata-anatomy-comparative-4-zootomy-3-the-fin-rays-figs-7-and-8r-delicate-cartilaginous-filaments-supporting-the-dorsal-and-caudal-fins-29-30-they-are-connected-ventrally-with-the-fibrous-tissue-cover-ing-in-the-neural-canal-and-lie-parallel-to-one-another-and-inclined-backwards-4-the-brain-case-or-hindmost-division-of-the-skull-posteriorly-it-consists-of-a-basal-or-parachordal-plate-figs-i-and-2-bpt-bp-surrounding-the-anterior-end-of-the-notochord-and-divided-by-the-latter-into-dorsal-bp-and-ventral-bp-portio-image232470620.htmlRMRE5XJ4–. A course of instruction in zootomy (vertebrata). Anatomy, Comparative. 4 ZOOTOMY. 3. The fin-rays (Figs. 7 and 8,/r), delicate cartilaginous filaments, supporting the dorsal and caudal fins (§§ 29, 30). They are connected ventrally with the fibrous tissue cover- ing in the neural canal, and lie parallel to one another and inclined backwards. 4. The brain-case, or hindmost division of the skull. Posteriorly it consists of a basal or parachordal plate (Figs, i and 2, b.pt b.p'), surrounding the anterior end of the notochord, and divided by the latter into dorsal (b.p) and ventral (b.p') portio
. Bulletin of the U.S. Department of Agriculture. Agriculture; Agriculture. The rectal gills (PL IV, fig. 5) are three-branched, each lateral branch bear- ing six lobes and the middle branch five, as a rule. This is a smaller number of lobes than is found in vcnustum (PL IV, fig. 9), which has seven or eight on each lateral branch. The caudal sucker bears from 70 to 75 rows of hooks. The larvae were taken by the writer from a fair- sized stream near Spartanburg, S. C, in August. 1913, and were separated from the larvae of other species by the number of branches of the pupal filaments (formed u Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-of-the-us-department-of-agriculture-agriculture-agriculture-the-rectal-gills-pl-iv-fig-5-are-three-branched-each-lateral-branch-bear-ing-six-lobes-and-the-middle-branch-five-as-a-rule-this-is-a-smaller-number-of-lobes-than-is-found-in-vcnustum-pl-iv-fig-9-which-has-seven-or-eight-on-each-lateral-branch-the-caudal-sucker-bears-from-70-to-75-rows-of-hooks-the-larvae-were-taken-by-the-writer-from-a-fair-sized-stream-near-spartanburg-s-c-in-august-1913-and-were-separated-from-the-larvae-of-other-species-by-the-number-of-branches-of-the-pupal-filaments-formed-u-image233820724.htmlRMRGBCM4–. Bulletin of the U.S. Department of Agriculture. Agriculture; Agriculture. The rectal gills (PL IV, fig. 5) are three-branched, each lateral branch bear- ing six lobes and the middle branch five, as a rule. This is a smaller number of lobes than is found in vcnustum (PL IV, fig. 9), which has seven or eight on each lateral branch. The caudal sucker bears from 70 to 75 rows of hooks. The larvae were taken by the writer from a fair- sized stream near Spartanburg, S. C, in August. 1913, and were separated from the larvae of other species by the number of branches of the pupal filaments (formed u
![. Bulletin - United States National Museum. Science. COPEPODS OF THE WOODS HOLE REGION 79. Seo"nient figure 53.—Scaplwoalanus validua: Male, fifth legs; b, female, fifth legs Female.—Head without a frontal crest; posterior corners of fifth segment rounded; rostrum with long undivided filaments; caudal rami one-half longer than wide; fifth legs apparently 2-segmented, the second and end segments fused, the spine on the inner margin as long as the fused segment and setose, the terminal spine one-third as long and setose, the outer spine smooth, minute^ and in the female close to the base of Stock Photo](https://c8.alamy.com/comp/RG7P63/bulletin-united-states-national-museum-science-copepods-of-the-woods-hole-region-79-seoquotnient-figure-53scaplwoalanus-validua-male-fifth-legs-b-female-fifth-legs-femalehead-without-a-frontal-crest-posterior-corners-of-fifth-segment-rounded-rostrum-with-long-undivided-filaments-caudal-rami-one-half-longer-than-wide-fifth-legs-apparently-2-segmented-the-second-and-end-segments-fused-the-spine-on-the-inner-margin-as-long-as-the-fused-segment-and-setose-the-terminal-spine-one-third-as-long-and-setose-the-outer-spine-smooth-minute-and-in-the-female-close-to-the-base-of-RG7P63.jpg ". Bulletin - United States National Museum. Science. COPEPODS OF THE WOODS HOLE REGION 79. Seo"nient figure 53.—Scaplwoalanus validua: Male, fifth legs; b, female, fifth legs Female.—Head without a frontal crest; posterior corners of fifth segment rounded; rostrum with long undivided filaments; caudal rami one-half longer than wide; fifth legs apparently 2-segmented, the second and end segments fused, the spine on the inner margin as long as the fused segment and setose, the terminal spine one-third as long and setose, the outer spine smooth, minute^ and in the female close to the base of Stock Photo")
. Bulletin - United States National Museum. Science. COPEPODS OF THE WOODS HOLE REGION 79. Seo"nient figure 53.—Scaplwoalanus validua: Male, fifth legs; b, female, fifth legs Female.—Head without a frontal crest; posterior corners of fifth segment rounded; rostrum with long undivided filaments; caudal rami one-half longer than wide; fifth legs apparently 2-segmented, the second and end segments fused, the spine on the inner margin as long as the fused segment and setose, the terminal spine one-third as long and setose, the outer spine smooth, minute^ and in the female close to the base of Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-united-states-national-museum-science-copepods-of-the-woods-hole-region-79-seoquotnient-figure-53scaplwoalanus-validua-male-fifth-legs-b-female-fifth-legs-femalehead-without-a-frontal-crest-posterior-corners-of-fifth-segment-rounded-rostrum-with-long-undivided-filaments-caudal-rami-one-half-longer-than-wide-fifth-legs-apparently-2-segmented-the-second-and-end-segments-fused-the-spine-on-the-inner-margin-as-long-as-the-fused-segment-and-setose-the-terminal-spine-one-third-as-long-and-setose-the-outer-spine-smooth-minute-and-in-the-female-close-to-the-base-of-image233740363.htmlRMRG7P63–. Bulletin - United States National Museum. Science. COPEPODS OF THE WOODS HOLE REGION 79. Seo"nient figure 53.—Scaplwoalanus validua: Male, fifth legs; b, female, fifth legs Female.—Head without a frontal crest; posterior corners of fifth segment rounded; rostrum with long undivided filaments; caudal rami one-half longer than wide; fifth legs apparently 2-segmented, the second and end segments fused, the spine on the inner margin as long as the fused segment and setose, the terminal spine one-third as long and setose, the outer spine smooth, minute^ and in the female close to the base of
![. Bulletin - United States National Museum. Science. Seo"nient figure 53.—Scaplwoalanus validua: Male, fifth legs; b, female, fifth legs Female.—Head without a frontal crest; posterior corners of fifth segment rounded; rostrum with long undivided filaments; caudal rami one-half longer than wide; fifth legs apparently 2-segmented, the second and end segments fused, the spine on the inner margin as long as the fused segment and setose, the terminal spine one-third as long and setose, the outer spine smooth, minute^ and in the female close to the base of the terminal spine. Total length, 3.2 Stock Photo](https://c8.alamy.com/comp/RG7P5D/bulletin-united-states-national-museum-science-seoquotnient-figure-53scaplwoalanus-validua-male-fifth-legs-b-female-fifth-legs-femalehead-without-a-frontal-crest-posterior-corners-of-fifth-segment-rounded-rostrum-with-long-undivided-filaments-caudal-rami-one-half-longer-than-wide-fifth-legs-apparently-2-segmented-the-second-and-end-segments-fused-the-spine-on-the-inner-margin-as-long-as-the-fused-segment-and-setose-the-terminal-spine-one-third-as-long-and-setose-the-outer-spine-smooth-minute-and-in-the-female-close-to-the-base-of-the-terminal-spine-total-length-32-RG7P5D.jpg ". Bulletin - United States National Museum. Science. Seo"nient figure 53.—Scaplwoalanus validua: Male, fifth legs; b, female, fifth legs Female.—Head without a frontal crest; posterior corners of fifth segment rounded; rostrum with long undivided filaments; caudal rami one-half longer than wide; fifth legs apparently 2-segmented, the second and end segments fused, the spine on the inner margin as long as the fused segment and setose, the terminal spine one-third as long and setose, the outer spine smooth, minute^ and in the female close to the base of the terminal spine. Total length, 3.2 Stock Photo")
. Bulletin - United States National Museum. Science. Seo"nient figure 53.—Scaplwoalanus validua: Male, fifth legs; b, female, fifth legs Female.—Head without a frontal crest; posterior corners of fifth segment rounded; rostrum with long undivided filaments; caudal rami one-half longer than wide; fifth legs apparently 2-segmented, the second and end segments fused, the spine on the inner margin as long as the fused segment and setose, the terminal spine one-third as long and setose, the outer spine smooth, minute^ and in the female close to the base of the terminal spine. Total length, 3.2 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-united-states-national-museum-science-seoquotnient-figure-53scaplwoalanus-validua-male-fifth-legs-b-female-fifth-legs-femalehead-without-a-frontal-crest-posterior-corners-of-fifth-segment-rounded-rostrum-with-long-undivided-filaments-caudal-rami-one-half-longer-than-wide-fifth-legs-apparently-2-segmented-the-second-and-end-segments-fused-the-spine-on-the-inner-margin-as-long-as-the-fused-segment-and-setose-the-terminal-spine-one-third-as-long-and-setose-the-outer-spine-smooth-minute-and-in-the-female-close-to-the-base-of-the-terminal-spine-total-length-32-image233740345.htmlRMRG7P5D–. Bulletin - United States National Museum. Science. Seo"nient figure 53.—Scaplwoalanus validua: Male, fifth legs; b, female, fifth legs Female.—Head without a frontal crest; posterior corners of fifth segment rounded; rostrum with long undivided filaments; caudal rami one-half longer than wide; fifth legs apparently 2-segmented, the second and end segments fused, the spine on the inner margin as long as the fused segment and setose, the terminal spine one-third as long and setose, the outer spine smooth, minute^ and in the female close to the base of the terminal spine. Total length, 3.2
. Bulletin of the U.S. Department of Agriculture. Agriculture. The rectal gills (PI. IV, fig. 5) are three-branched, each lateral branch bear- ing six lobes and the middle branch five, as a rule. This is a smaller number of lobes than is found in venustum (PI. IV, fig. 9), which has seven or eight on each lateral branch. The caudal sucker bears from 70 to 75 rows of hooks. The larvae were taken by the writer from a fair- sized stream near Spartanburg, S. C, in August, 1913, and were separated from the larvae of other species by the number of branches of the pupal filaments (formed underneath t Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-of-the-us-department-of-agriculture-agriculture-the-rectal-gills-pi-iv-fig-5-are-three-branched-each-lateral-branch-bear-ing-six-lobes-and-the-middle-branch-five-as-a-rule-this-is-a-smaller-number-of-lobes-than-is-found-in-venustum-pi-iv-fig-9-which-has-seven-or-eight-on-each-lateral-branch-the-caudal-sucker-bears-from-70-to-75-rows-of-hooks-the-larvae-were-taken-by-the-writer-from-a-fair-sized-stream-near-spartanburg-s-c-in-august-1913-and-were-separated-from-the-larvae-of-other-species-by-the-number-of-branches-of-the-pupal-filaments-formed-underneath-t-image233813883.htmlRMRGB3YR–. Bulletin of the U.S. Department of Agriculture. Agriculture. The rectal gills (PI. IV, fig. 5) are three-branched, each lateral branch bear- ing six lobes and the middle branch five, as a rule. This is a smaller number of lobes than is found in venustum (PI. IV, fig. 9), which has seven or eight on each lateral branch. The caudal sucker bears from 70 to 75 rows of hooks. The larvae were taken by the writer from a fair- sized stream near Spartanburg, S. C, in August, 1913, and were separated from the larvae of other species by the number of branches of the pupal filaments (formed underneath t
. Bulletin - United States National Museum. Science. FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 575 simple, slender, imiserial in jaws, those on each side of mandible little larger; row of small fine teeth on each palatine, none on vomer; in- terorbital 4i^ to 5, level; side and top of head, finely and rather feebly venulose. Gill rakers 15+25, finely lanceolate, 1/2 eye; gill filaments % of gill rakers. Scales very caducous, fallen from most all specimens, 40 to 42 (pockets) in median lateral series to caudal base and 3 or 4 more on latter; 15 or IG transversely, 23 to 28 predorsal. S Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-united-states-national-museum-science-fishes-of-the-philippine-islands-and-adjacent-seas-575-simple-slender-imiserial-in-jaws-those-on-each-side-of-mandible-little-larger-row-of-small-fine-teeth-on-each-palatine-none-on-vomer-in-terorbital-4i-to-5-level-side-and-top-of-head-finely-and-rather-feebly-venulose-gill-rakers-1525-finely-lanceolate-12-eye-gill-filaments-of-gill-rakers-scales-very-caducous-fallen-from-most-all-specimens-40-to-42-pockets-in-median-lateral-series-to-caudal-base-and-3-or-4-more-on-latter-15-or-ig-transversely-23-to-28-predorsal-s-image233725106.htmlRMRG72N6–. Bulletin - United States National Museum. Science. FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 575 simple, slender, imiserial in jaws, those on each side of mandible little larger; row of small fine teeth on each palatine, none on vomer; in- terorbital 4i^ to 5, level; side and top of head, finely and rather feebly venulose. Gill rakers 15+25, finely lanceolate, 1/2 eye; gill filaments % of gill rakers. Scales very caducous, fallen from most all specimens, 40 to 42 (pockets) in median lateral series to caudal base and 3 or 4 more on latter; 15 or IG transversely, 23 to 28 predorsal. S
. Bulletin - United States National Museum. Science. Figure 26.—Terapon jarbua (ForskAl). Variation of color markings on palatines; interorbital 3I/2 to 3%, broad, flattened; preorbital finely serrated; preopercle edge with 25 denticles, well developed at lower corner. Gill rakers 6 + 13, compressed, short, % of gill filaments. Scales 76 to 78 in lateral line to caudal base and 6 more on latter; 15 or 16 scales above lateral line, 23 to 25 below, 20 to 25 predorsal, 6 or 7 rows on cheek. Suprascapula finely denticulate. Scales with 10 to 13 slightly radiating basal striae; apical denticles 15 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-united-states-national-museum-science-figure-26terapon-jarbua-forskal-variation-of-color-markings-on-palatines-interorbital-3i2-to-3-broad-flattened-preorbital-finely-serrated-preopercle-edge-with-25-denticles-well-developed-at-lower-corner-gill-rakers-6-13-compressed-short-of-gill-filaments-scales-76-to-78-in-lateral-line-to-caudal-base-and-6-more-on-latter-15-or-16-scales-above-lateral-line-23-to-25-below-20-to-25-predorsal-6-or-7-rows-on-cheek-suprascapula-finely-denticulate-scales-with-10-to-13-slightly-radiating-basal-striae-apical-denticles-15-image233725347.htmlRMRG731R–. Bulletin - United States National Museum. Science. Figure 26.—Terapon jarbua (ForskAl). Variation of color markings on palatines; interorbital 3I/2 to 3%, broad, flattened; preorbital finely serrated; preopercle edge with 25 denticles, well developed at lower corner. Gill rakers 6 + 13, compressed, short, % of gill filaments. Scales 76 to 78 in lateral line to caudal base and 6 more on latter; 15 or 16 scales above lateral line, 23 to 25 below, 20 to 25 predorsal, 6 or 7 rows on cheek. Suprascapula finely denticulate. Scales with 10 to 13 slightly radiating basal striae; apical denticles 15
. Bulletin - United States National Museum. Science. FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 605 Gill rakers 68 + 90, finely lanceolate, about long as eye; gill filaments % length of gill rakers. Inside edge of gill opening with single notch. Scales 38 to 42 in median lateral series to caudal base and 4 or 5 more on latter; 12 or 13 transversely, 12 to 17 predorsal. Abdominal scutes 16 or 17+12 to 14. Scales firmly adherent, narrowly imbri- cated. Scales with 2 vertical wide spaced parallel striae; 20 to 25 marginal striae apically; circuli fine, vertically parallel. D. Ill, 13 or 1 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-united-states-national-museum-science-fishes-of-the-philippine-islands-and-adjacent-seas-605-gill-rakers-68-90-finely-lanceolate-about-long-as-eye-gill-filaments-length-of-gill-rakers-inside-edge-of-gill-opening-with-single-notch-scales-38-to-42-in-median-lateral-series-to-caudal-base-and-4-or-5-more-on-latter-12-or-13-transversely-12-to-17-predorsal-abdominal-scutes-16-or-1712-to-14-scales-firmly-adherent-narrowly-imbri-cated-scales-with-2-vertical-wide-spaced-parallel-striae-20-to-25-marginal-striae-apically-circuli-fine-vertically-parallel-d-ill-13-or-1-image233725082.htmlRMRG72MA–. Bulletin - United States National Museum. Science. FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 605 Gill rakers 68 + 90, finely lanceolate, about long as eye; gill filaments % length of gill rakers. Inside edge of gill opening with single notch. Scales 38 to 42 in median lateral series to caudal base and 4 or 5 more on latter; 12 or 13 transversely, 12 to 17 predorsal. Abdominal scutes 16 or 17+12 to 14. Scales firmly adherent, narrowly imbri- cated. Scales with 2 vertical wide spaced parallel striae; 20 to 25 marginal striae apically; circuli fine, vertically parallel. D. Ill, 13 or 1
. Bulletin - United States National Museum. Science. 202 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM half size of pupil; interorbital 4% to 5}4 in head from snout tip; preopercle edge entire; median opercular spine closer to lower which opposite upper. Gill rakers 5 + 12, lanceolate, little longer than gill filaments or 1% in eye; 3 upper and 3 lower rudimentary. Scales 93 to 133 in lateral line to caudal base and 12 to 15 more on latter; tubes 83 to 90 in lateral line to caudal base and 11 to 20 more on latter; 17 to 20 scales above, 34 to 40 below, 37 to 40 predorsal forward to occiput only Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-united-states-national-museum-science-202-bulletin-10-0-united-states-national-museum-half-size-of-pupil-interorbital-4-to-54-in-head-from-snout-tip-preopercle-edge-entire-median-opercular-spine-closer-to-lower-which-opposite-upper-gill-rakers-5-12-lanceolate-little-longer-than-gill-filaments-or-1-in-eye-3-upper-and-3-lower-rudimentary-scales-93-to-133-in-lateral-line-to-caudal-base-and-12-to-15-more-on-latter-tubes-83-to-90-in-lateral-line-to-caudal-base-and-11-to-20-more-on-latter-17-to-20-scales-above-34-to-40-below-37-to-40-predorsal-forward-to-occiput-only-image233724998.htmlRMRG72HA–. Bulletin - United States National Museum. Science. 202 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM half size of pupil; interorbital 4% to 5}4 in head from snout tip; preopercle edge entire; median opercular spine closer to lower which opposite upper. Gill rakers 5 + 12, lanceolate, little longer than gill filaments or 1% in eye; 3 upper and 3 lower rudimentary. Scales 93 to 133 in lateral line to caudal base and 12 to 15 more on latter; tubes 83 to 90 in lateral line to caudal base and 11 to 20 more on latter; 17 to 20 scales above, 34 to 40 below, 37 to 40 predorsal forward to occiput only
. Bulletin - United States National Museum. Science. Jf*„!!„fy^J,'^i^i^i^ tn.m. Figure 4.—Dampieria bitaeniata, new species. Type 2 larger wide set lower anteriorly; vomer with narrow band of fine teeth, none on palatine or tongue; interorbital 6 to 6%, slightly con- vex. Gill rakers 4 + 12, lanceolate, % of gill filaments, which 1% in eye. Scales 42 to 44 in median lateral series to caudal base and 8 or 9 more on latter; upper section of lateral line with 32 or 33 tubular scales, lower section with 8 to 10 to caudal base and 1 or 2 more on latter; 3 or 4 scales above lateral line, 13 below, 2 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-united-states-national-museum-science-jf!!fyjiii-tnm-figure-4dampieria-bitaeniata-new-species-type-2-larger-wide-set-lower-anteriorly-vomer-with-narrow-band-of-fine-teeth-none-on-palatine-or-tongue-interorbital-6-to-6-slightly-con-vex-gill-rakers-4-12-lanceolate-of-gill-filaments-which-1-in-eye-scales-42-to-44-in-median-lateral-series-to-caudal-base-and-8-or-9-more-on-latter-upper-section-of-lateral-line-with-32-or-33-tubular-scales-lower-section-with-8-to-10-to-caudal-base-and-1-or-2-more-on-latter-3-or-4-scales-above-lateral-line-13-below-2-image233725752.htmlRMRG73G8–. Bulletin - United States National Museum. Science. Jf*„!!„fy^J,'^i^i^i^ tn.m. Figure 4.—Dampieria bitaeniata, new species. Type 2 larger wide set lower anteriorly; vomer with narrow band of fine teeth, none on palatine or tongue; interorbital 6 to 6%, slightly con- vex. Gill rakers 4 + 12, lanceolate, % of gill filaments, which 1% in eye. Scales 42 to 44 in median lateral series to caudal base and 8 or 9 more on latter; upper section of lateral line with 32 or 33 tubular scales, lower section with 8 to 10 to caudal base and 1 or 2 more on latter; 3 or 4 scales above lateral line, 13 below, 2
. Bulletin - United States National Museum. Science. Figure 5.—Plectropomus truncatus, new species, variation 4V2 to 5 in head from snout tip, level; hind preopercle edge entire, lower edge with 3 or 4 antrorse spines; opercular spines 3, median nearer lower and upper most advanced. Gill rakers 6 + 9 to 12, short, 2^3 in gill filaments which 134 in eye; 5 upper and 7 to 10 lower rudimentary. Scales 94 to 100 in lateral line to caudal base and 12 to 15? more on latter; tubes 81 to 84 in lateral line to caudal base and 8 to 10 more on latter; 13 to 16 scales above, 38 to 40 below, 36 to 40 pre- Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-united-states-national-museum-science-figure-5plectropomus-truncatus-new-species-variation-4v2-to-5-in-head-from-snout-tip-level-hind-preopercle-edge-entire-lower-edge-with-3-or-4-antrorse-spines-opercular-spines-3-median-nearer-lower-and-upper-most-advanced-gill-rakers-6-9-to-12-short-23-in-gill-filaments-which-134-in-eye-5-upper-and-7-to-10-lower-rudimentary-scales-94-to-100-in-lateral-line-to-caudal-base-and-12-to-15-more-on-latter-tubes-81-to-84-in-lateral-line-to-caudal-base-and-8-to-10-more-on-latter-13-to-16-scales-above-38-to-40-below-36-to-40-pre-image233725076.htmlRMRG72M4–. Bulletin - United States National Museum. Science. Figure 5.—Plectropomus truncatus, new species, variation 4V2 to 5 in head from snout tip, level; hind preopercle edge entire, lower edge with 3 or 4 antrorse spines; opercular spines 3, median nearer lower and upper most advanced. Gill rakers 6 + 9 to 12, short, 2^3 in gill filaments which 134 in eye; 5 upper and 7 to 10 lower rudimentary. Scales 94 to 100 in lateral line to caudal base and 12 to 15? more on latter; tubes 81 to 84 in lateral line to caudal base and 8 to 10 more on latter; 13 to 16 scales above, 38 to 40 below, 36 to 40 pre-
. Bulletin - United States National Museum. Science. FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 253 to 31/^ in head; teeth small, simple, conic, in 4 or 5 irregular series in jaws with outermost row little enlarged; interorbital 3% to 41/3, convexly elevated; preopercle edge with 25 to 30 denticles. Gill rakers 8 + 20, lanceolate, y^ to I/2 of gill filaments which 1% in eye. Scales 75 to 90 in lateral line to caudal base and 12 to 14 more on latter; 45 to 59 tubular scales in lateral line to caudal base and 9 to 11 more on latter; 12 or 13 scales above lateral line, 18 to 20 below, 38 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-united-states-national-museum-science-fishes-of-the-philippine-islands-and-adjacent-seas-253-to-31-in-head-teeth-small-simple-conic-in-4-or-5-irregular-series-in-jaws-with-outermost-row-little-enlarged-interorbital-3-to-413-convexly-elevated-preopercle-edge-with-25-to-30-denticles-gill-rakers-8-20-lanceolate-y-to-i2-of-gill-filaments-which-1-in-eye-scales-75-to-90-in-lateral-line-to-caudal-base-and-12-to-14-more-on-latter-45-to-59-tubular-scales-in-lateral-line-to-caudal-base-and-9-to-11-more-on-latter-12-or-13-scales-above-lateral-line-18-to-20-below-38-image233725462.htmlRMRG735X–. Bulletin - United States National Museum. Science. FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 253 to 31/^ in head; teeth small, simple, conic, in 4 or 5 irregular series in jaws with outermost row little enlarged; interorbital 3% to 41/3, convexly elevated; preopercle edge with 25 to 30 denticles. Gill rakers 8 + 20, lanceolate, y^ to I/2 of gill filaments which 1% in eye. Scales 75 to 90 in lateral line to caudal base and 12 to 14 more on latter; 45 to 59 tubular scales in lateral line to caudal base and 9 to 11 more on latter; 12 or 13 scales above lateral line, 18 to 20 below, 38
. Annales de biologie lacustre. Natural history; Freshwater animals; Freshwater plants; Lakes. — 2J — de la prison de terre qui fut témoin de sa dernière méta- morphose : stade embryonnaire, développement des trachéo- branchies et leur segmentation, apparition des soies bilaté- rales des filaments branchiaux et de l'appendice caudal, durée de la vie larvaire (un an ou deux ??), etc. Nous ne pos- sédons même pas encore une bonne figure de la nymphe (i). C'est pour inciter à ces recherches faciles que je commu- nique quelques observations sur deux faits intéressants : l'un concerne la larvule de Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/annales-de-biologie-lacustre-natural-history-freshwater-animals-freshwater-plants-lakes-2j-de-la-prison-de-terre-qui-fut-tmoin-de-sa-dernire-mta-morphose-stade-embryonnaire-dveloppement-des-tracho-branchies-et-leur-segmentation-apparition-des-soies-bilat-rales-des-filaments-branchiaux-et-de-lappendice-caudal-dure-de-la-vie-larvaire-un-an-ou-deux-etc-nous-ne-pos-sdons-mme-pas-encore-une-bonne-figure-de-la-nymphe-i-cest-pour-inciter-ces-recherches-faciles-que-je-commu-nique-quelques-observations-sur-deux-faits-intressants-lun-concerne-la-larvule-de-image236707948.htmlRMRN2YB8–. Annales de biologie lacustre. Natural history; Freshwater animals; Freshwater plants; Lakes. — 2J — de la prison de terre qui fut témoin de sa dernière méta- morphose : stade embryonnaire, développement des trachéo- branchies et leur segmentation, apparition des soies bilaté- rales des filaments branchiaux et de l'appendice caudal, durée de la vie larvaire (un an ou deux ??), etc. Nous ne pos- sédons même pas encore une bonne figure de la nymphe (i). C'est pour inciter à ces recherches faciles que je commu- nique quelques observations sur deux faits intéressants : l'un concerne la larvule de
. Bulletin - United States National Museum. Science. 282 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM interorbital 7 to 9}i, nearly level; hind preopercle edge with very minute serrae; opercular spines 3, median nearer lower. Gill rakers 9+15, rather clavate, little less than gill filaments or }/$ of eye; 8 above and 5 below rudimentary. Scales 96 to 98 in lateral line to caudal base and 15 to 18 more on latter; tubes 33 to 38 in lateral line to caudal base and 4 or 5 more on latter; 14 to 16 scales above lateral line, 33 to 38 below, 60 to 87 predorsal, 25 to 33 rows across cheek; body scales Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-united-states-national-museum-science-282-bulletin-10-0-united-states-national-museum-interorbital-7-to-9i-nearly-level-hind-preopercle-edge-with-very-minute-serrae-opercular-spines-3-median-nearer-lower-gill-rakers-915-rather-clavate-little-less-than-gill-filaments-or-of-eye-8-above-and-5-below-rudimentary-scales-96-to-98-in-lateral-line-to-caudal-base-and-15-to-18-more-on-latter-tubes-33-to-38-in-lateral-line-to-caudal-base-and-4-or-5-more-on-latter-14-to-16-scales-above-lateral-line-33-to-38-below-60-to-87-predorsal-25-to-33-rows-across-cheek-body-scales-image233724718.htmlRMRG727A–. Bulletin - United States National Museum. Science. 282 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM interorbital 7 to 9}i, nearly level; hind preopercle edge with very minute serrae; opercular spines 3, median nearer lower. Gill rakers 9+15, rather clavate, little less than gill filaments or }/$ of eye; 8 above and 5 below rudimentary. Scales 96 to 98 in lateral line to caudal base and 15 to 18 more on latter; tubes 33 to 38 in lateral line to caudal base and 4 or 5 more on latter; 14 to 16 scales above lateral line, 33 to 38 below, 60 to 87 predorsal, 25 to 33 rows across cheek; body scales
. Contributions à l'étude des Bopyriens. Bopyridae. qui, à ce niveau, n'apparaissent plus que comme deux minces filaments peu colo- rés, tandis que les extrémités libres, antérieurement et postérieurement, sont larges et vivement pigmentées (PI. II, fig. 3, hé). Les spermatozoïdes sont d'une extrême petitesse et se présentent sous la forme de petits corpuscules réfringents doués de mouvements vifs et irréguliers qui font présumer l'existence d'un filament caudal; mais nous n'avons pu, avec les plus forts grossissements , constater de visu sa présence. Une seule fois, sur une tr Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/contributions-ltude-des-bopyriens-bopyridae-qui-ce-niveau-napparaissent-plus-que-comme-deux-minces-filaments-peu-colo-rs-tandis-que-les-extrmits-libres-antrieurement-et-postrieurement-sont-larges-et-vivement-pigmentes-pi-ii-fig-3-h-les-spermatozodes-sont-dune-extrme-petitesse-et-se-prsentent-sous-la-forme-de-petits-corpuscules-rfringents-dous-de-mouvements-vifs-et-irrguliers-qui-font-prsumer-lexistence-dun-filament-caudal-mais-nous-navons-pu-avec-les-plus-forts-grossissements-constater-de-visu-sa-prsence-une-seule-fois-sur-une-tr-image232552228.htmlRMRE9JMM–. Contributions à l'étude des Bopyriens. Bopyridae. qui, à ce niveau, n'apparaissent plus que comme deux minces filaments peu colo- rés, tandis que les extrémités libres, antérieurement et postérieurement, sont larges et vivement pigmentées (PI. II, fig. 3, hé). Les spermatozoïdes sont d'une extrême petitesse et se présentent sous la forme de petits corpuscules réfringents doués de mouvements vifs et irréguliers qui font présumer l'existence d'un filament caudal; mais nous n'avons pu, avec les plus forts grossissements , constater de visu sa présence. Une seule fois, sur une tr
. Bulletin - New York State Museum. Science. ;68 NEW YORK STATE MUSEUM single jointed prolegs. The position and number of respiratory filaments may be represented diagrammatically. Dorsum Venter 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 2 3 3 2 3 3 3 3 3 3 2 2 2 2 2 2 3 3 23 32 2 2 1 3 3 12 2l|l3 31 2 2 2 2 2 2 ' 2 2 2 2 I I :. Fig. 38 Caudal processes of the pupa Pupa. (PI. 32, fig. 6) Length 16 to 18 mm. Width 4 to 5 mm. Antennae as long as the body. Wings 10 mm. Head yellow, thorax white. Spurs on the tibiae occur in order 1-3-3. Abdomen white with dull brick red on the dorsal side, specially on the Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-new-york-state-museum-science-68-new-york-state-museum-single-jointed-prolegs-the-position-and-number-of-respiratory-filaments-may-be-represented-diagrammatically-dorsum-venter-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-2-3-3-2-3-3-3-3-3-3-2-2-2-2-2-2-3-3-23-32-2-2-1-3-3-12-2ll3-31-2-2-2-2-2-2-2-2-2-2-i-i-fig-38-caudal-processes-of-the-pupa-pupa-pi-32-fig-6-length-16-to-18-mm-width-4-to-5-mm-antennae-as-long-as-the-body-wings-10-mm-head-yellow-thorax-white-spurs-on-the-tibiae-occur-in-order-1-3-3-abdomen-white-with-dull-brick-red-on-the-dorsal-side-specially-on-the-image233981391.htmlRMRGJNJ7–. Bulletin - New York State Museum. Science. ;68 NEW YORK STATE MUSEUM single jointed prolegs. The position and number of respiratory filaments may be represented diagrammatically. Dorsum Venter 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 2 3 3 2 3 3 3 3 3 3 2 2 2 2 2 2 3 3 23 32 2 2 1 3 3 12 2l|l3 31 2 2 2 2 2 2 ' 2 2 2 2 I I :. Fig. 38 Caudal processes of the pupa Pupa. (PI. 32, fig. 6) Length 16 to 18 mm. Width 4 to 5 mm. Antennae as long as the body. Wings 10 mm. Head yellow, thorax white. Spurs on the tibiae occur in order 1-3-3. Abdomen white with dull brick red on the dorsal side, specially on the
 Maurolicus muelleri; (Bb, Bbb) Cyclothone braueri, and (b, Bm, Bbm) C. microdon. In A and B, which are transverse sections through the body just in front of the caudal peduncle, the muscle fibres are shown in black and are drawn to scale. The drawings of the gill filaments are from the lower part of the first gill arch, fb, forebrain; mb, midbrain; cb, cerebellum, (a, b, x 15; a', Bm, Bb, X20; a&q Stock Photo")
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. Bb. Text-fig. 43. The development of the body muscles, gill filaments and brain of (a, a', a") Maurolicus muelleri; (Bb, Bbb) Cyclothone braueri, and (b, Bm, Bbm) C. microdon. In A and B, which are transverse sections through the body just in front of the caudal peduncle, the muscle fibres are shown in black and are drawn to scale. The drawings of the gill filaments are from the lower part of the first gill arch, fb, forebrain; mb, midbrain; cb, cerebellum, (a, b, x 15; a', Bm, Bb, X20; a&q Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/discovery-reports-discovery-ship-scientific-expeditions-ocean-antarctica-falkland-islands-bb-text-fig-43-the-development-of-the-body-muscles-gill-filaments-and-brain-of-a-a-aquot-maurolicus-muelleri-bb-bbb-cyclothone-braueri-and-b-bm-bbm-c-microdon-in-a-and-b-which-are-transverse-sections-through-the-body-just-in-front-of-the-caudal-peduncle-the-muscle-fibres-are-shown-in-black-and-are-drawn-to-scale-the-drawings-of-the-gill-filaments-are-from-the-lower-part-of-the-first-gill-arch-fb-forebrain-mb-midbrain-cb-cerebellum-a-b-x-15-a-bm-bb-x20-aq-image231420981.htmlRMRCE3R1–. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. Bb. Text-fig. 43. The development of the body muscles, gill filaments and brain of (a, a', a") Maurolicus muelleri; (Bb, Bbb) Cyclothone braueri, and (b, Bm, Bbm) C. microdon. In A and B, which are transverse sections through the body just in front of the caudal peduncle, the muscle fibres are shown in black and are drawn to scale. The drawings of the gill filaments are from the lower part of the first gill arch, fb, forebrain; mb, midbrain; cb, cerebellum, (a, b, x 15; a', Bm, Bb, X20; a&q
