. Fresh-water biology. Freshwater biology. THE OSTRACODA 813 41 (40) Dorsal edge of furca plain (Fig. 1267 b). Herpetocypris testudinaria Cushman Length mm., height mm., width mm. A small extra spine by sub terminal claw. Furca about fourteen times as long as wide, its claws plain. Ponds. Newfoundland. May. Fig. 1265. Herpetocypris testudinaria. (a) Side view; (6) Furca; (c) End of furca, showing small spine by claw. 42 (43) Natatory setae of second antenna reach to tips of terminal claws, or slightly beyond. Second leg with a beak-like end segment and a claw (Fig. 1268 6
. Fresh-water biology. Freshwater biology. THE OSTRACODA 813 41 (40) Dorsal edge of furca plain (Fig. 1267 b). Herpetocypris testudinaria Cushman Length mm., height mm., width mm. A small extra spine by sub terminal claw. Furca about fourteen times as long as wide, its claws plain. Ponds. Newfoundland. May. Fig. 1265. Herpetocypris testudinaria. (a) Side view; (6) Furca; (c) End of furca, showing small spine by claw. 42 (43) Natatory setae of second antenna reach to tips of terminal claws, or slightly beyond. Second leg with a beak-like end segment and a claw (Fig. 1268 6, e). Subfamily Cypridinae . 44 43 (42) Natatory setae of the second antenna reach beyond tips of terminal claws by about one-half their length. Second leg with three terminal setae of different lengths, two of them re- flexed, the other short and claw-like (Fig. 1290 c, f). Subfamily Cyclocypridinae . 75 44 (45) Testes, if present, originating in anterior part of shell in form of concentric circles or half circles (Fig. 1266). Spiracypris Sharpe 1903 . 46 45 (44) Testes, if present, not originating in anterior part of shell in form of concentric circles or half circles (Fig. 1271 b). Cypris O. F. MiiUer 1785 . 48 46 (47) Shell not tuberculate, excessively hairy (Fig. 1266 a). Spiracy pris passaica Sharpe 1903. Length mm., height mm., breadth mm. Brownish with dark-blue patches later- ally and dorsally. Nata- tory setae reach shghtly beyond tips of terminal claws. Terminal claw of second leg one and one- half times length of ter- minal segment. Furca about one-half length of shell, about twenty-three times as long as wide, and its dorsal margin weakly pectinate. Weedy ponds; spring months. Massa- chusetts, New Jersey. Fig. 1266. Spirocypris passaica. (.a) Side view, X 30; (S) Dorsal view; (c) Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illus
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfreshwa, bookyear1918
