. Bulletin - United States National Museum. Science. ISOPODS OF NORTH AMERICA. 375 PENTIDOTEA STENOPS (Benedict). Idotea denops Benedict, Proc. Biol. Soc. Washington, XIT, 1898, pp. 54-55.— Richardson, Proc. U. 8. Nat. Mas., XXI, 1899, p. 846; Ann. Mag. Nat. Hist. (7), IV, 1899, p. 266; American Naturalist, XXXIV, 1900, p. 227; Harriinaii Alaska Exp. Crust., X, 1904, j). 219; Proc. U. S. Nat. Mus., XXVII, 1904, p. 663. Locality.—^Monterey Bay, California. Bod}' oblong-ovate, nearly three times ay lono- as wide, 15 mm.: 42 mm. Head nearly twice as wide as long, -t mm.: 7 mm. Frontal margin slig
. Bulletin - United States National Museum. Science. ISOPODS OF NORTH AMERICA. 375 PENTIDOTEA STENOPS (Benedict). Idotea denops Benedict, Proc. Biol. Soc. Washington, XIT, 1898, pp. 54-55.— Richardson, Proc. U. 8. Nat. Mas., XXI, 1899, p. 846; Ann. Mag. Nat. Hist. (7), IV, 1899, p. 266; American Naturalist, XXXIV, 1900, p. 227; Harriinaii Alaska Exp. Crust., X, 1904, j). 219; Proc. U. S. Nat. Mus., XXVII, 1904, p. 663. Locality.—^Monterey Bay, California. Bod}' oblong-ovate, nearly three times ay lono- as wide, 15 mm.: 42 mm. Head nearly twice as wide as long, -t mm.: 7 mm. Frontal margin slightly excavate between the antero-lateral angles. The eyes are transversely elongated, l)eing live times as wide as long and are situ- ated at the sides of the head. The basal article of the tirst antennae is greatly dilated; the three following articles are short and nearly subequal. The first pair of antenna? extend to the end of the second article of the pe- duncle of the second pair of antennte. The tirst arti- cle of the second pair of antennte is short and does n©t extend beyond the l)asal article of the tirst pair of antenna>; the second and third articles are sul)- ecpuil; the fourth and fifth articles are also subequal and each is a little longer than either of the t\\'o pre- ceding articles. The fla- gellum is composed of fif- teen articles. The second antenntB extend to the posterior margin of the second thoracic segment. The maxillipeds have a palp of five articles. The tirst segment of the thorax has the lateral parts expanded and produced anteri- orly, surrounding the posterior half of the head. The second, third, and fourth seg- ments are subequal and longer than the first, fifth, and sixth segments, which aresube(iual. The seventh segment is a little shorter than the sixth. The epimera are distinctly separated on all the segments with the exception of the first. The first three occupy almost the entire lateral margin, the epimera being 5 nun. lo
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