. Fresh-water biology. Freshwater biology. Fig. i49y. 130 (134) Shell elliptic-rhomboid, compressed; pseudocardinals well developed; laterals more or less imperfect or subobsolete. Symphynota Lea . 131 131 (132, 133) Shell smooth, shining, rayed; teeth delicate; laterals moderately developed. Subgenus Symphynota The type, ;'om/'rf55aLea(Fig. 1500; X rl), is one of the common species of the Northern State-S, ranging from New York west to Nebraska and south to Arkansas. Several other species are found in the Atlantic drainage from New \ork to South CaroUna and in eastern Tennessee and

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. Fresh-water biology. Freshwater biology. Fig. i49y. 130 (134) Shell elliptic-rhomboid, compressed; pseudocardinals well developed; laterals more or less imperfect or subobsolete. Symphynota Lea . 131 131 (132, 133) Shell smooth, shining, rayed; teeth delicate; laterals moderately developed. Subgenus Symphynota The type, ;'om/'rf55aLea(Fig. 1500; X rl), is one of the common species of the Northern State-S, ranging from New York west to Nebraska and south to Arkansas. Several other species are found in the Atlantic drainage from New \ork to South CaroUna and in eastern Tennessee and northern Fig. 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