. Fresh-water biology. Freshwater biology. 43 (44, 4S) Surface spirally striate and hispid. Section Gyraulus A tew, small species, not uncommon in the eastern Northern States and Canada. The group is not represented on the Pacific coast Ex- ample, Planorbis hirsutus Gld., (Fig. 1432; X 3).. 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

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. Fresh-water biology. Freshwater biology. 43 (44, 4S) Surface spirally striate and hispid. Section Gyraulus A tew, small species, not uncommon in the eastern Northern States and Canada. The group is not represented on the Pacific coast Ex- ample, Planorbis hirsutus Gld., (Fig. 1432; X 3).. 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