. Fresh-water biology. Freshwater biology. THE OSTRACODA 825. 105 (106) Subtermlnal claw of furca decidedly S-shaped (Fig. 1296 d). Candona simpsoni Sharpe 1897. Length mm., height mm., width mm. Yellowish white. Left valve overlaps the right. Upper and lower valve margins nearly parallel. Furca curved, stout, seven times as long as wide with the subterminal claw decidedly S-shaped — a marked character. Dorsal seta twice width of furca from subterminal claw, and two-thirds its length. Bottom forms of lakes and river shores, and ponds; spring and autunm. lUinois. Fig. 1296. Cando
. Fresh-water biology. Freshwater biology. THE OSTRACODA 825. 105 (106) Subtermlnal claw of furca decidedly S-shaped (Fig. 1296 d). Candona simpsoni Sharpe 1897. Length mm., height mm., width mm. Yellowish white. Left valve overlaps the right. Upper and lower valve margins nearly parallel. Furca curved, stout, seven times as long as wide with the subterminal claw decidedly S-shaped — a marked character. Dorsal seta twice width of furca from subterminal claw, and two-thirds its length. Bottom forms of lakes and river shores, and ponds; spring and autunm. lUinois. Fig. 1296. Candona simpsmti. [a) Side view, X 47; (6) Second leg; (c) Second antenna; id) Furca. Subterminal claw not S-shaped (Fig. 1297 c) 107 Shell with dorsal and ventral margins nearly parallel (Fig. 1297 a). Candona parallela G. W. MUller 1900. Length to mm., height to mm., width to mm. Height to length about as I to 18. Furca straight, about seven times as long as wide, its terminal seta rudimentary, and its terminal claws doubly pectinate with unusual teeth. Dorsal seta about twice width of furca from subterminal claw. Second leg five-segmented. Swampy ponds; May. Colorado. Fig. 1297. Candona parallela. (a) Side view, X 37i; (6) Second leg; (c) Furca; id) Terminal claws of furca. 108(109) Furca plainly curved (Fig. 1301 6) 112 109 (108) Furcanotplainly curved, approximately straight (Fig. 1298 i). no no (in) Both claws of furca plainly S-shaped (Fig. 1298 d). Candona sigmoides Sharpe 1897. Length of male mm., height mm. Second leg five-segmented. Furca long and straight, about twelve times as wide as average width. Dorsal seta about four times width of furca from subterminal claw. Fe- male not known. Lake and river shores; May and October. UUnois. Fig. 1298. Candona sigmoides. (a) Side view of male, X is; {*) Second leg; (c) Second antenna; {d) Please note that these images are extracted from scanned page images that may have been digit
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfreshwa, bookyear1918
