. Fresh-water biology. Freshwater biology. Length 0.65 mm. Shell grass green, nearly crescent-shaped, and thickly covered with long, closely appressed hairs. Pools and ditches, July, August, and September. Eggs venniUon red. Ponds and ditches, April, July, August. South Chicago, Mexico. Fig. 1254. Potamocypris smaragdina. (a) Side view, X'40; (6) Dorsal view; (c) Furca, X 150. 16 (17) With two distinct eyes (Fig. 1255 5) 18 17(16) With eyes fused, ornone apparent (Fig. 1258 c) 22 18 (19) First maxillary process with six spines. Furca with three long setae and no spines (Fig. 1255 c-d). .... 20
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. Fresh-water biology. Freshwater biology. Length 0.65 mm. Shell grass green, nearly crescent-shaped, and thickly covered with long, closely appressed hairs. Pools and ditches, July, August, and September. Eggs venniUon red. Ponds and ditches, April, July, August. South Chicago, Mexico. Fig. 1254. Potamocypris smaragdina. (a) Side view, X'40; (6) Dorsal view; (c) Furca, X 150. 16 (17) With two distinct eyes (Fig. 1255 5) 18 17(16) With eyes fused, ornone apparent (Fig. 1258 c) 22 18 (19) First maxillary process with six spines. Furca with three long setae and no spines (Fig. 1255 c-d). .... 20 19 (18) First maxillary process with six spines. Furca with four long setae and no spines (Fig. 1256 c). 21 20 Second antenna six-segmented in both sexes. Second leg terminat- ing in three setae, one of which is reflexed. Notodromas LiUjeborg 1853. Only one species in North America. Notodromas monacha (O. F. Muller) 1785.. Length 1.18 mm. "Hump- backed"; brownish yellow. Active swimmers, resembling the Cladocera in many move- ments. Occasionally hang to surface film of water, back down, as Cyprois. Permanent fresh ponds with algae. North- ern Indiana, spring and sum- mer. Fig. I2SS. Notodromas monacha. (o) Side view of male, X 30_; (6) Dorsal view, X ^o; (c) Maxillary spines, X 100; W) Furca of female, X 60; (e) End of second leg, X no.. 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.. Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [etc. , etc. ]