. Bulletin - United States National Museum. Science. ISOPODS OF NORTH AMERICA. 259 iJS mill., widest at 111111. : 5 Body ovate, not twice as wide as long, IT mm. the fourth thoracic seo-ment. The head is triang-uhir, and at the base is wider than loiio mm.; it is partly set in the first thoracic seg-- ment, the antero-Iateral angles of which extend to about the middle of the head. The eyes are small, oval, composite, situated in the post- hiteral angles of the head, and separated ante- riorly b}" a distance nearlv equal to the length of one e3^e. The posterior margin of the head is rounde
. Bulletin - United States National Museum. Science. ISOPODS OF NORTH AMERICA. 259 iJS mill., widest at 111111. : 5 Body ovate, not twice as wide as long, IT mm. the fourth thoracic seo-ment. The head is triang-uhir, and at the base is wider than loiio mm.; it is partly set in the first thoracic seg-- ment, the antero-Iateral angles of which extend to about the middle of the head. The eyes are small, oval, composite, situated in the post- hiteral angles of the head, and separated ante- riorly b}" a distance nearlv equal to the length of one e3^e. The posterior margin of the head is rounded; the anterior margin is widely rounded. The anterior end is 2 mm. wide. The first pair of antennae are composed of eight articles and extend to the end of the sixth article of the second pair of antenna\ The basal arti- cles are not adjacent, being separated by a dis- tance equal to 1 mm. The second pair of an- fig. 2G8.—livoneca , jiii-i'i Ris (After Stimpson). tennte are composed or ten articles, and extend ' to the middle of the first thoracic segment. The maxillipeds have a. 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
