. Fresh-water biology. Freshwater biology. MM. 43 (42) Ocellus rhomboidal or round. Claws pectinate. . Fig. 1073. Simocephalus veluius, with epbippium. Vertex with obtuse or rounded angle. Simocephalus exspinosus (Koch) Valves much as in vetulus, but striae do not anastomose so freely. Post-abdomen slightly narrower toward apex; anal spines up to 12, evenly curved, not bent; claws with pecten of 8-12 teeth and denticulate. Color and gen- eral appearance much as preceding species. Length, 9. mm.; S , to mm. Not common; reported from Massachu- setts, Wisconsin, and the south
. Fresh-water biology. Freshwater biology. MM. 43 (42) Ocellus rhomboidal or round. Claws pectinate. . Fig. 1073. Simocephalus veluius, with epbippium. Vertex with obtuse or rounded angle. Simocephalus exspinosus (Koch) Valves much as in vetulus, but striae do not anastomose so freely. Post-abdomen slightly narrower toward apex; anal spines up to 12, evenly curved, not bent; claws with pecten of 8-12 teeth and denticulate. Color and gen- eral appearance much as preceding species. Length, 9. mm.; S , to mm. Not common; reported from Massachu- setts, Wisconsin, and the southern states. Fig. 1074. Simocephalus 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
