. Fresh-water biology. Freshwater biology. 8i4 FRESH-WATER BIOLOGY 47 (46) Shell very tuberculate, 1267 c).. sparsely hairy and unusually plump (Fig, . . Spirocypris tuberculata Sharpe igo8. Length mm., height mm., width mm, PurpUsh brown, with one or two dorsal transverse lighter bands. Right valve slightly overlaps the left anteriorly. Natatory setae extend but sUghtly beyond the ter- minal claws. Furca about thirty-two times as long as wide. Shallow, weedy, and swampy ponds; spring. Chicago and northern In- diana. Spirocypris tuberculata. Fig. 1267. {a) Side view, X 43: (&
. Fresh-water biology. Freshwater biology. 8i4 FRESH-WATER BIOLOGY 47 (46) Shell very tuberculate, 1267 c).. sparsely hairy and unusually plump (Fig, . . Spirocypris tuberculata Sharpe igo8. Length mm., height mm., width mm, PurpUsh brown, with one or two dorsal transverse lighter bands. Right valve slightly overlaps the left anteriorly. Natatory setae extend but sUghtly beyond the ter- minal claws. Furca about thirty-two times as long as wide. Shallow, weedy, and swampy ponds; spring. Chicago and northern In- diana. Spirocypris tuberculata. Fig. 1267. {a) Side view, X 43: (&) Furca; (c) Dorsal view. 48 (49) First leg four-segmented, third and fourth segments xmited (Fig. 1268 c). . Subgenus £«rycyj^m G. W. Muller 1898. Only one species in this subgenus. Cypris {Eurycypris) pubera O. F. Muller 1785. Length mm., height mm., breadth mm. Greenish in color. A dark patch at its highest and cen- tral part as seen from the side. Shell sparsely hairy. Anterior and postero-ventral margins with prominent external tuber- cles. Two prominent tuber- cles at postero-ventral part of shell. This character alone is sufficient to identify this species of cypris. First leg four-seg- mented. Furca nearly straight, about twenty-four times as long as wide. Ponds; April to June. Oregon. Fig. 1268. Cypris {Eurycypris) pubera. (a) Side view, X 10; (b) End of second leg; (c) First leg; (d) Furca; («) Second antenna; (f) Posteroventral part of 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
