. Fresh-water biology. Freshwater biology. 113 (112) No such folds. Macrothrix hirsuticornis Norman and Brady Form broadly ovate, not very different from M. lalicornis. Antennules broad, flat, bent, varying in form but always enlarged distally; with 6-8 rows of stiff hairs on anterior side; sometimes stout setae on posterior side; olfactory setae unequal. Post-abdo- men large; broad, bilobed; pre-anal part not flattened nor with projection for abdominal setae; numerous small spines and hairs on both anal and pre-anal parts. $ unknown. Length, 9, mm. New England, Colorado. Fig, 1114.
. Fresh-water biology. Freshwater biology. 113 (112) No such folds. Macrothrix hirsuticornis Norman and Brady Form broadly ovate, not very different from M. lalicornis. Antennules broad, flat, bent, varying in form but always enlarged distally; with 6-8 rows of stiff hairs on anterior side; sometimes stout setae on posterior side; olfactory setae unequal. Post-abdo- men large; broad, bilobed; pre-anal part not flattened nor with projection for abdominal setae; numerous small spines and hairs on both anal and pre-anal parts. $ unknown. Length, 9, mm. New England, Colorado. Fig, 1114. Macrothrix 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
