. Bulletin - United States National Museum. Science. ISOPODS OF N<mTH AMERICA. 279. The first segment of the abdomen hus three suture lines, and its pos- tei'ior margin is produced in two small points, one on each side of the median line, about equidistant from it and tlie lateral margin of the segment. The terminal segment is widel}' rounded posteriorly. The inner branch of the uropoda is of nearl}^ equal width throughout its length and is rounded at its extremit} ; the outer branch is slender and sharply pointed. Both ])ranehes are of nearly ecpial length and neither extends beyond t\n\ t
. Bulletin - United States National Museum. Science. ISOPODS OF N<mTH AMERICA. 279. The first segment of the abdomen hus three suture lines, and its pos- tei'ior margin is produced in two small points, one on each side of the median line, about equidistant from it and tlie lateral margin of the segment. The terminal segment is widel}' rounded posteriorly. The inner branch of the uropoda is of nearl}^ equal width throughout its length and is rounded at its extremit} ; the outer branch is slender and sharply pointed. Both ])ranehes are of nearly ecpial length and neither extends beyond t\n\ tip of the abdo- men. The first pair of legs have the i)ropodus dilated and the dactylus reflexible. The pro- podus is large and oval in shape. In the legs of the second pair the propodus is irregular in shape, dilated with refiexible dactylus in the male, and simple in the female. The legs of the oth(»r five pairs are similar in structure, ambulatory, and show a gradual increase in leup' 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
