. Fresh-water biology. Freshwater biology. 998 FRESH-WATER BIOLOGY 113 (114) All four gills serving as marsupia. Shell large, solid, rhomboid, truncated posteriorly in the male, elongated, with a strong posterior ridge, sexes dissimilar in shape, the posterior region being rounded and subcompressed in the female; hinge com- plete; surface pustulose, except on the extended portion of the female. ... Triligonia Agassiz. The type, T. lubenulalaBar. (Fig. 14S5; X s)-'s very common in the Mississippi drainage and in the Southern States from Alabama to Te.\ Please note that these images are extr
. Fresh-water biology. Freshwater biology. 998 FRESH-WATER BIOLOGY 113 (114) All four gills serving as marsupia. Shell large, solid, rhomboid, truncated posteriorly in the male, elongated, with a strong posterior ridge, sexes dissimilar in shape, the posterior region being rounded and subcompressed in the female; hinge com- plete; surface pustulose, except on the extended portion of the female. ... Triligonia Agassiz. The type, T. lubenulalaBar. (Fig. 14S5; X s)-'s very common in the Mississippi drainage and in the Southern States from Alabama to Te.\ 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
