. Fresh-water biology. Freshwater biology. Fig. 1082. Ceriodaphnia megalops. 57(56,62) Post-abdomen not cut into; of ordinary form 58 58 (59) Fornices projecting into spinous processes. Eye small. Ceriodaphnia lacustris Birge 1893. Head angulated in front of an- tennule; vertex with fine spinules. Fornices very broad, triangular; with spines at tip. Valves with stout, short posterior spine, some- times divided, but usually with 3-4 spinules. Post-abdomen like C. quadrangula. cf unknown. Color yellow, transparent. Length, 9, mm. Wisconsin, Michigan; linmetic in lakes. Fig. 1083. Cerioda
. Fresh-water biology. Freshwater biology. Fig. 1082. Ceriodaphnia megalops. 57(56,62) Post-abdomen not cut into; of ordinary form 58 58 (59) Fornices projecting into spinous processes. Eye small. Ceriodaphnia lacustris Birge 1893. Head angulated in front of an- tennule; vertex with fine spinules. Fornices very broad, triangular; with spines at tip. Valves with stout, short posterior spine, some- times divided, but usually with 3-4 spinules. Post-abdomen like C. quadrangula. cf unknown. Color yellow, transparent. Length, 9, mm. Wisconsin, Michigan; linmetic in lakes. Fig. 1083. Ceriodaphnia 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 Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [etc. ,etc. ]
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfreshwa, bookyear1918
