Class ophiuroidea hi-res stock photography and images

Common brittlestar,Ophiura ophiura, Brittle stars or ophiuroids are echinoderms in the class Ophiuroidea closely related to starfish. Stock Photo

RFPX9GH1–Common brittlestar,Ophiura ophiura, Brittle stars or ophiuroids are echinoderms in the class Ophiuroidea closely related to starfish.

Close up of Brittle Sea Star, Brittle stars or ophiuroids, echinoderms, class Ophiuroidea, on a spanish dancer Stock Photo

RMT3G1AJ–Close up of Brittle Sea Star, Brittle stars or ophiuroids, echinoderms, class Ophiuroidea, on a spanish dancer

Coralreef with Britle star and Feather star, Crinoidea ( Class ), Ophiuroidea ( Class ), False bay, Simons Town, South Africa, Indian Ocean Stock Photo

RMKXJWF5–Coralreef with Britle star and Feather star, Crinoidea ( Class ), Ophiuroidea ( Class ), False bay, Simons Town, South Africa, Indian Ocean

Coral reef with brittle stars, crinoidea (class) and feather stars Ophiuroidea (class), False Bay, Simons Town, South Africa, Indian Ocean Stock Photo

RF2E4AKFW–Coral reef with brittle stars, crinoidea (class) and feather stars Ophiuroidea (class), False Bay, Simons Town, South Africa, Indian Ocean

Brittle stars, serpent stars, or ophiuroids are echinoderms in the class Ophiuroidea, Stock Photo

RF2W9W9EM–Brittle stars, serpent stars, or ophiuroids are echinoderms in the class Ophiuroidea,

The Brittle star is on the palm. Ophiuroids are echinoderms in the class Ophiuroidea closely related to starfish, has five arms joined to a central b Stock Photo

RF2HD56T4–The Brittle star is on the palm. Ophiuroids are echinoderms in the class Ophiuroidea closely related to starfish, has five arms joined to a central b

RF2WCNWWY–Brittle stars, serpent stars, or ophiuroids are echinoderms in the class Ophiuroidea,

A Gorgonocephalus eucnemis; a species of basket star in the class Ophiuroidea. Stock Photo

RF2J7289J–A Gorgonocephalus eucnemis; a species of basket star in the class Ophiuroidea.

RF2WCNWWN–Brittle stars, serpent stars, or ophiuroids are echinoderms in the class Ophiuroidea,

Saron Shrimp, Saron marmoratus, with Brittle Star, Ophiuroidea Class, tentacle, night dive, Maluku Divers House Reef dive site, Ambon, Banda Sea, Indo Stock Photo

RM2R6DB39–Saron Shrimp, Saron marmoratus, with Brittle Star, Ophiuroidea Class, tentacle, night dive, Maluku Divers House Reef dive site, Ambon, Banda Sea, Indo

RF2YRCHPR–Brittle stars, serpent stars, or ophiuroids are echinoderms in the class Ophiuroidea,

Close up Ophiura Spiny brittle star. Ophiocoma echinata black in Red sea star Egypt underwater. invertebrate habitat wild animals salt water. Class Stock Photo

RF2JPBXAN–Close up Ophiura Spiny brittle star. Ophiocoma echinata black in Red sea star Egypt underwater. invertebrate habitat wild animals salt water. Class

Brittle stars or ophiuroids are echinoderms in the class Ophiuroidea closely related to starfish Stock Photo

RFKTDCTR–Brittle stars or ophiuroids are echinoderms in the class Ophiuroidea closely related to starfish

RFB9RB84–star fish L'Oceanogràfic

RFRM8R6W–Brittle stars or ophiuroids are echinoderms in the class Ophiuroidea closely related to starfish.

Brittle star, Ophiothrix sp, on Hydroid, Hydrozoa Class, Manado, Sulawesi, Indonesia, Asia Stock Photo

RMC2CB29–Brittle star, Ophiothrix sp, on Hydroid, Hydrozoa Class, Manado, Sulawesi, Indonesia, Asia

RF2B24R29–Brittle stars or ophiuroids are echinoderms in the class Ophiuroidea closely related to starfish

. A text-book of invertebrate morphology. Invertebrates. TYPE EOHINODERMA. 561 III. Class Ophiuroidea. The Ophiuroidea, or Brittle-stars, resemble the starfishes closely in their general form, consisting of a central disk from which five arms radiate (Fig. 257). The arms, however, are in all cases slender and distinctly marked off from the disk, and in Astrophyton branch dichotomously. Closer examina- tion reveals, however, considerable differences from the Star- fishes ; there is no anus, the madreporite is on the oral sur-. FiG. 257.—Opliioglyplia aculeata from thb Aboeal Surface to show the Stock Photo

RMRE0754–. A text-book of invertebrate morphology. Invertebrates. TYPE EOHINODERMA. 561 III. Class Ophiuroidea. The Ophiuroidea, or Brittle-stars, resemble the starfishes closely in their general form, consisting of a central disk from which five arms radiate (Fig. 257). The arms, however, are in all cases slender and distinctly marked off from the disk, and in Astrophyton branch dichotomously. Closer examina- tion reveals, however, considerable differences from the Star- fishes ; there is no anus, the madreporite is on the oral sur-. FiG. 257.—Opliioglyplia aculeata from thb Aboeal Surface to show the

Elementary textbook of economic zoology and entomology elementarytextbo00kell Year: [c1915] STARFISHES, SEA-URCHINS, ETC. 95 recognized. Some starfish may have thirty or more rays instead of five as in the typical forms. Others may have the interradial spaces filled out nearly or quite to the tips of the rays, making the animal simply a pentagonal disk. Some are very small, less than an inch in diameter, while others attain an extent of three feet or more. The brittle-stars belong to the class Ophiuroidea (Gr. ophis, snake; our a, tail; eidos, likeness). They differ from the FIG. 35.—A ho Stock Photo

RMRYH8K1–Elementary textbook of economic zoology and entomology elementarytextbo00kell Year: [c1915] STARFISHES, SEA-URCHINS, ETC. 95 recognized. Some starfish may have thirty or more rays instead of five as in the typical forms. Others may have the interradial spaces filled out nearly or quite to the tips of the rays, making the animal simply a pentagonal disk. Some are very small, less than an inch in diameter, while others attain an extent of three feet or more. The brittle-stars belong to the class Ophiuroidea (Gr. ophis, snake; our a, tail; eidos, likeness). They differ from the FIG. 35.—A ho

. A manual of zoology. PHYLUM ECHINODERMATA 169 is sometimes absent; in Asterias vulgaris it is minute, almost closed. The spines and pedicellariaj differ in their form and arrangement in different kinds of starfish, as also, though in a less degree, the tube-feet. The starfishes con- stitute one of the five classes of living Echinodermata, the class Asteroidea. 2. THE OPHIUROIDEA The Brittle-stars bear many resemblances to the true star- fishes, but have a number of special features of sufficient. Fig. 93.—Ophioglypha lacertosa. A. outline, of the natural size; B, central disc, dorsal view; C Stock Photo

RMPG40CM–. A manual of zoology. PHYLUM ECHINODERMATA 169 is sometimes absent; in Asterias vulgaris it is minute, almost closed. The spines and pedicellariaj differ in their form and arrangement in different kinds of starfish, as also, though in a less degree, the tube-feet. The starfishes con- stitute one of the five classes of living Echinodermata, the class Asteroidea. 2. THE OPHIUROIDEA The Brittle-stars bear many resemblances to the true star- fishes, but have a number of special features of sufficient. Fig. 93.—Ophioglypha lacertosa. A. outline, of the natural size; B, central disc, dorsal view; C

RMKXJWFA–Coralreef with Britle star and Feather star, Crinoidea ( Class ), Ophiuroidea ( Class ), False bay, Simons Town, South Africa, Indian Ocean

Coral reef with brittle stars, crinoidea (class) and feather stars Ophiuroidea (class) and divers, False Bay, Simons Town, South Africa, Indian Ocean Stock Photo

RF2E4AKF4–Coral reef with brittle stars, crinoidea (class) and feather stars Ophiuroidea (class) and divers, False Bay, Simons Town, South Africa, Indian Ocean

RF2JPBY6D–Close up Ophiura Spiny brittle star. Ophiocoma echinata black in Red sea star Egypt underwater. invertebrate habitat wild animals salt water. Class

RF2B24R2E–Brittle stars or ophiuroids are echinoderms in the class Ophiuroidea closely related to starfish

. Principles of modern biology. Biology. The Animal Kingdom - 661 Fig. 32-33. Echinoderms, rep- resenting the five classes. A, a sea urchin, Class Echinoidea; B, a sea lilly, Class Crinoidea; C, a sea cucumber, Class Holo- thuroidea; D, a brittle star, Class Ophiuroidea; and E, a common starfish, Class Asteroi- dea. (From General Zoology, by Miller and Haub. Holt, Rinehart and Winston, Inc.). Embedded in the body wall there is an endo- skeleton, consisting of a number of hard calcareous plates, the ossicles; and projecting outward from the body there are many cal- careous spines. Collectively Stock Photo

RMRDYRED–. Principles of modern biology. Biology. The Animal Kingdom - 661 Fig. 32-33. Echinoderms, rep- resenting the five classes. A, a sea urchin, Class Echinoidea; B, a sea lilly, Class Crinoidea; C, a sea cucumber, Class Holo- thuroidea; D, a brittle star, Class Ophiuroidea; and E, a common starfish, Class Asteroi- dea. (From General Zoology, by Miller and Haub. Holt, Rinehart and Winston, Inc.). Embedded in the body wall there is an endo- skeleton, consisting of a number of hard calcareous plates, the ossicles; and projecting outward from the body there are many cal- careous spines. Collectively

RFPX9GGY–Common brittlestar,Ophiura ophiura, Brittle stars or ophiuroids are echinoderms in the class Ophiuroidea closely related to starfish.

RFPXR9TJ–Common brittlestar,Ophiura ophiura, Brittle stars or ophiuroids are echinoderms in the class Ophiuroidea closely related to starfish.

RFRN58NF–Common brittlestar,Ophiura ophiura, Brittle stars or ophiuroids are echinoderms in the class Ophiuroidea closely related to starfish.

. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. oooooooooooooooooooo n in m m in n co r— co 01 Egg Diameter. Lnininininininininininmininininininmin CMCNCNCNCNCNCNJCNJCSJOMCNJCMCNCNCSJCNICNCNCMCN CO COT-CD CO COT-COT— CO'— CD i- cp T- cp 06 od CD Ln Egg Diameter (jam) Figure 2. Egg size distribution pattern in the class Ophiuroidea (n = 1321. Information on the egg size of species of ophiuroids was compiled from Hendler (109 ophiuroid species, ret". 38) and later published literature. The type of larval development was based on Hendler's classification (ref. 38, p. 45 Stock Photo

RMRHM9WY–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. oooooooooooooooooooo n in m m in n co r— co 01 Egg Diameter. Lnininininininininininmininininininmin CMCNCNCNCNCNCNJCNJCSJOMCNJCMCNCNCSJCNICNCNCMCN CO COT-CD CO COT-COT— CO'— CD i- cp T- cp 06 od CD Ln Egg Diameter (jam) Figure 2. Egg size distribution pattern in the class Ophiuroidea (n = 1321. Information on the egg size of species of ophiuroids was compiled from Hendler (109 ophiuroid species, ret". 38) and later published literature. The type of larval development was based on Hendler's classification (ref. 38, p. 45

North American index fossils, invertebrates . Fig. 1908. Ancyrocrinus spinosus, lateral and summit views. (After Hall.) Branch ASTEROZOA Leuckhart.Class I. OPHIUROIDEA Gray. The Ophiurians, or brittle stars, are marine echinoderms abun-dantly represented in the modern fauna. They appear as early asthe Siluric and have representatives throughout the Palaeozoic. Amore or less sharply defined central diskcontains the mouth and digestive cavity,which latter does not extend into the slen-der, rounded arms. The arms consist of anaxis of jointed calcareous disks (vertebralossicles), surrounded by pla Stock Photo

RM2ANA1T3–North American index fossils, invertebrates . Fig. 1908. Ancyrocrinus spinosus, lateral and summit views. (After Hall.) Branch ASTEROZOA Leuckhart.Class I. OPHIUROIDEA Gray. The Ophiurians, or brittle stars, are marine echinoderms abun-dantly represented in the modern fauna. They appear as early asthe Siluric and have representatives throughout the Palaeozoic. Amore or less sharply defined central diskcontains the mouth and digestive cavity,which latter does not extend into the slen-der, rounded arms. The arms consist of anaxis of jointed calcareous disks (vertebralossicles), surrounded by pla

. Elementary textbook of economic zoology and entomology. Zoology; Insect pests. STARFISHES, SEA-URCHINS, ETC. 95 recognized. Some starfish may have thirty or more rays instead of five as in the typical forms. Others may have the interradial spaces filled out nearly or quite to the tips of the rays, making the animal simply a pentagonal disk. Some are very small, less than an inch in diameter, while others attain an extent of three feet or more. The brittle-stars belong to the class Ophiuroidea (Gr. ophis, snake; our a, tail; eidos, likeness). They differ from the. FIG. 35.—A holothurian or se Stock Photo

RMRCY6FN–. Elementary textbook of economic zoology and entomology. Zoology; Insect pests. STARFISHES, SEA-URCHINS, ETC. 95 recognized. Some starfish may have thirty or more rays instead of five as in the typical forms. Others may have the interradial spaces filled out nearly or quite to the tips of the rays, making the animal simply a pentagonal disk. Some are very small, less than an inch in diameter, while others attain an extent of three feet or more. The brittle-stars belong to the class Ophiuroidea (Gr. ophis, snake; our a, tail; eidos, likeness). They differ from the. FIG. 35.—A holothurian or se

. A manual of zoology. Zoology. Fig. 316. â Pythonnster murrayi. CAfter ,'=!laflen.) Aboral view showing anibuLacral grooves. Class II. Ophiuroidea (Brittle Stars). In these the animal consists, as in the Asteroidea, of disc and arms, the latter sometimes branched, but the internal anatomy is different. The ambiilacral plates have been drawn inside the arm and each pair fused to a large 'vertebra' (fig. 317). As a result the cualom of the arms is greatly reduced, the hepatic caeca are lack- ing, and the alimentary canal, which lacks an anus, is confined to the disc. By the ingrowth of ven- Fio Stock Photo

RMRE0995–. A manual of zoology. Zoology. Fig. 316. â Pythonnster murrayi. CAfter ,'=!laflen.) Aboral view showing anibuLacral grooves. Class II. Ophiuroidea (Brittle Stars). In these the animal consists, as in the Asteroidea, of disc and arms, the latter sometimes branched, but the internal anatomy is different. The ambiilacral plates have been drawn inside the arm and each pair fused to a large 'vertebra' (fig. 317). As a result the cualom of the arms is greatly reduced, the hepatic caeca are lack- ing, and the alimentary canal, which lacks an anus, is confined to the disc. By the ingrowth of ven- Fio

RMRDJ76E–. A manual of zoology. PHYLUM ECHINODERMATA 169 is sometimes absent; in Asterias vulgaris it is minute, almost closed. The spines and pedicellariaj differ in their form and arrangement in different kinds of starfish, as also, though in a less degree, the tube-feet. The starfishes con- stitute one of the five classes of living Echinodermata, the class Asteroidea. 2. THE OPHIUROIDEA The Brittle-stars bear many resemblances to the true star- fishes, but have a number of special features of sufficient. Fig. 93.—Ophioglypha lacertosa. A. outline, of the natural size; B, central disc, dorsal view; C

. Biology and human life. Biology. 82 BIOLOGY AND HUMAN LIFE. Fig. 47. The pill bug When suddenly disturbed, this animal curls up, thus reducing its exposed surface and concealing its most delicate and sensitive parts BRANCH VI—WHEELWORMS (Trochelminthes). The Rotifera, or wheel animalcules. Mostly microscopic. BRANCH VII—ECHINODERMATA (''spiny-skinned" animals). Ra- dially symmetrical, all marine. Class i—Asteroidea. Starfish. Class 2 — Ophiuroidea. Brittle stars. Class 3 — Echinoidea. Sea urchins. Class 4—Holothuroidea. Sea cucumbers. Class 5 — Crinoidea. Sea lilies. BRANCH VIII—ANNELID Stock Photo

RMRHK866–. Biology and human life. Biology. 82 BIOLOGY AND HUMAN LIFE. Fig. 47. The pill bug When suddenly disturbed, this animal curls up, thus reducing its exposed surface and concealing its most delicate and sensitive parts BRANCH VI—WHEELWORMS (Trochelminthes). The Rotifera, or wheel animalcules. Mostly microscopic. BRANCH VII—ECHINODERMATA (''spiny-skinned" animals). Ra- dially symmetrical, all marine. Class i—Asteroidea. Starfish. Class 2 — Ophiuroidea. Brittle stars. Class 3 — Echinoidea. Sea urchins. Class 4—Holothuroidea. Sea cucumbers. Class 5 — Crinoidea. Sea lilies. BRANCH VIII—ANNELID

. Zoölogy [microform] : descriptive and practical. Zoology; Zoologie. 3S^ Descriptive Zoology. Branch VII. — Molluscoi'da. Class I. PSiyzo'a — sea mats. Class 11. Brachiop'oda — lamp shells. Branch VlII. —ficHlNoofiR'MATA. Class I. Asteroi'dea — starfish. Class II. Ophiuroi'dea — brittle stars. Class III. Echinoi'dea — sea urchins. Class IV. Holothuroi'dea — sea cucumbers. Class V. Crinoi'dea — sea lilies.. i lit if- s Branch IX. — Annula'ta. Class I. Chaetop'oda (ke-top'-o-da) — earthworm. Class II. Gephyre'a (jef-e-re'-a). Class III. HIrudln'ea — leech. Branch X. — ArthrSp'oda. Class I. Cru Stock Photo

RMRENT1P–. Zoölogy [microform] : descriptive and practical. Zoology; Zoologie. 3S^ Descriptive Zoology. Branch VII. — Molluscoi'da. Class I. PSiyzo'a — sea mats. Class 11. Brachiop'oda — lamp shells. Branch VlII. —ficHlNoofiR'MATA. Class I. Asteroi'dea — starfish. Class II. Ophiuroi'dea — brittle stars. Class III. Echinoi'dea — sea urchins. Class IV. Holothuroi'dea — sea cucumbers. Class V. Crinoi'dea — sea lilies.. i lit if- s Branch IX. — Annula'ta. Class I. Chaetop'oda (ke-top'-o-da) — earthworm. Class II. Gephyre'a (jef-e-re'-a). Class III. HIrudln'ea — leech. Branch X. — ArthrSp'oda. Class I. Cru

. Elements of comparative zoology. Zoology. 278 SYSTEMATIC ZOOLOGY. gradually the muscle of the oyster becomes fatigued, until at last it can no longer hold the shell closed. Then the starfish protrudes its stomach from the mouth, envelops the flesh of the oyster with it, and thus digests the oyster out- side of the body. The retractor muscles are to draw the stomach back after a meal. This method of external eat- ing explains the frequent degeneration or absence of intestine and anus (p. 277). CLASS II.—OPHIUROIDEA (BRITTLE-STARS). The brittle-stars, or serpent-stars as they are frequently ca Stock Photo

RMRCNJYN–. Elements of comparative zoology. Zoology. 278 SYSTEMATIC ZOOLOGY. gradually the muscle of the oyster becomes fatigued, until at last it can no longer hold the shell closed. Then the starfish protrudes its stomach from the mouth, envelops the flesh of the oyster with it, and thus digests the oyster out- side of the body. The retractor muscles are to draw the stomach back after a meal. This method of external eat- ing explains the frequent degeneration or absence of intestine and anus (p. 277). CLASS II.—OPHIUROIDEA (BRITTLE-STARS). The brittle-stars, or serpent-stars as they are frequently ca

RMRCPK6G–. Elements of comparative zoology. Zoology. 278 SYSTEMATIC ZOOLOGY. gradually the muscle of the oyster becomes fatigued, until at last it can no longer hold the shell closed. Then the starfish protrudes its stomach from the mouth, envelops the flesh of the oyster with it, and thus digests the oyster out- side of the body. The retractor muscles are to draw the stomach back after a meal. This method of external eat- ing explains the frequent degeneration or absence of intestine and anus (p. 277). Class II.—OPHIUROIDEA (Brittle-stars). The brittle-stars, or serpent-stars as they are frequently ca

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