. Fresh-water biology. Freshwater biology. THE OSTRACODA 823 91 Terminal segment of second leg with three unlike setae, one of which is reflexed (Fig. 1291 d). Subfamily Candoninae . 92 92 (94) Shell reticulate, very tumid. Small, plump forms, not more than mm. long. Second antenna of both sexes five-segmented. Paracandona Hartwig 1899 . 93 93 Shell profusely ornamented with polygonal areas and tubercles (Fig. 1291 a). Paracandona euplectella Brady and Norman 1889. Length to mm., height to mm., width to mm. Male somewhat larger. One terminal claw of mandibula
. Fresh-water biology. Freshwater biology. THE OSTRACODA 823 91 Terminal segment of second leg with three unlike setae, one of which is reflexed (Fig. 1291 d). Subfamily Candoninae . 92 92 (94) Shell reticulate, very tumid. Small, plump forms, not more than mm. long. Second antenna of both sexes five-segmented. Paracandona Hartwig 1899 . 93 93 Shell profusely ornamented with polygonal areas and tubercles (Fig. 1291 a). Paracandona euplectella Brady and Norman 1889. Length to mm., height to mm., width to mm. Male somewhat larger. One terminal claw of mandibular palp fused to terminal segment (Fig. 1291 e). Furca stout, six times as long as wide. Dorsal seta about length of subterminal claw. Terminal seta weak, scarcely evident. No other Candona-like ostra- cod shows the ornamentation of polygonal areas and tubercles. The specific name very happily refers to the striking external appearance. Shal- low, swampy regions, in mud and debris of the bottom; spring months. New Jersey. Fig. T2QI. Paracandona euplectella. {a) Side view, X 50; (6) Dor- sal view; (c) Furca; {d) Second leg; (e) Mandibular 94 (92) Shell plain, at least not reticulate or excessively tuberculate or tumid 95 95 (96) Furca abnormal, terminal seta absent (Fig. 1292 h). TypMocypris Vejdovsky 1882 97 96 (95) Furca normal, with 2 claws and 2 setae (Fig. 1294 6). Candona Baird 1850 99 97 (98) Furca nearly straight. Dorsal-valve margins evenly curved (Fig. 1292 a-b) TypMocypris peircei Turner 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
