. Bulletin - United States National Museum. Science. 46 BULLETIN 15 8, UNITED STATES NATIONAL MUSEUM Genus AETIDEOPSIS G. O. Sars, 1903 Anterior portion of head much narrowed, with the frontal margin flattened on each side; fifth segment distinctly separated from the fourth, its posterior corners produced into slender spines, which scarcely reach the center of the genital segment; urosome 4-seg- mented. ExojDods of first four pairs of legs 3-segmented; first endopod 1-segmented, second endopod 2-segmented, third and fourth endopods 3-segmented; fifth legs lacking in female, male unknown. One s
. Bulletin - United States National Museum. Science. 46 BULLETIN 15 8, UNITED STATES NATIONAL MUSEUM Genus AETIDEOPSIS G. O. Sars, 1903 Anterior portion of head much narrowed, with the frontal margin flattened on each side; fifth segment distinctly separated from the fourth, its posterior corners produced into slender spines, which scarcely reach the center of the genital segment; urosome 4-seg- mented. ExojDods of first four pairs of legs 3-segmented; first endopod 1-segmented, second endopod 2-segmented, third and fourth endopods 3-segmented; fifth legs lacking in female, male unknown. One species found here. AETIDEOPSIS ROSTRATA G. O. Sars FiGUBB 27 Aetideopsis rostrata Sars, Crustacea of Norway, vol. 4, p. 160, suppl. pis. 4, 5, 1903. Occurrence.—A single female from the trawl wings. Station 1089, Fish Haxoh^ northeast of Cape Cod Light. Distribution.—B e t w e e n Jan Mayen and Finmark (Sars) ; North Sea (Wol- fenden); west coast of Ireland (Farran) ; Arctic Ocean (Koefoed and Damas); between Iceland and Greenland (With): Malaysia (A. Scott). Color.—Sars made the statement: " Color not yet ascertained," and this is still true, since Rathbun made no notes on this single specimen. Female.—Body elongate-obovate; ante- rior head widened through the mouth and abruptly narrowed in front of this, the forehead triangular. First antennae reaching posterior margin of first ab- dominal segment; urosome one-third as long as metasome; genital segment pro- truding slightly ventrally. Apical spines on the exopods of the first four pairs of Total length, 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.
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