. Alaska ... Natural history; Scientific expeditions. DECAPODS 23 the telson is longer than the sixth segment, and at the posterior end is notched with a very shallow V-shaped sinus, so shallow that the extremity can hardly be called ' forked.' Dimensions.— Length of female 81 mm., of carapace 2>2>-Z "^i^- Distribution.— Santa Barbara Chan- nel, California, 265 to 322 fathoms {Albatross stations 2903, 2904, 2960, i^. PasipLa emarginata. 5. Station 3200, and 3201). Gulf of California, ^"S^nTs^^M^ ^'^^ °^ carapace (x x\). b. I ±ciSon \/\ 33/* off Concepcion Bay, Lower California,
. Alaska ... Natural history; Scientific expeditions. DECAPODS 23 the telson is longer than the sixth segment, and at the posterior end is notched with a very shallow V-shaped sinus, so shallow that the extremity can hardly be called ' forked.' Dimensions.— Length of female 81 mm., of carapace 2>2>-Z "^i^- Distribution.— Santa Barbara Chan- nel, California, 265 to 322 fathoms {Albatross stations 2903, 2904, 2960, i^. PasipLa emarginata. 5. Station 3200, and 3201). Gulf of California, ^"S^nTs^^M^ ^'^^ °^ carapace (x x\). b. I ±ciSon \/\ 33/* off Concepcion Bay, Lower California, 857 fathoms, station 3009 (type locality). PASIPH^A PRINCEPS Smith. Pasiphae princeps SMITH, Rept. U. S. Commr. Fish and Fisheries for 1882, p. 381, pi. V, fig. 2 (1884); op. cit. for 1885, p. 682 (1886). Pasiphaeiaprinceps Faxon, Mem. Mus. Comp. ZooL, xvili, 175, 1895. One large female, 167 mm. long, was dredged by the Albatross off Sea Lion Rock, Washington, in 859 fathoms, station 3075; and one small specimen about 47 mm. long, north of Unalaska, in 399 fathoms, station 3329- I have at hand only one specimen determined by Professor Smith. It was taken south of Marthas Vineyard in 538 fathoms, at station 2546. It measures 150 mm. long. It differs from the type in having the carina of the posterior two thirds of the carapace well marked though blunt, in the gastric tooth projecting well beyond the frontal margin, the anterior (or inferior) margin of this spine contiguous with the dorsal surface of the carapace in advance of the spine, and in having the merus of the first and second pairs of feet armed with numerous spines (instead of the first pair unarmed and the second pair few-spined). The antero-lateral sinus is rectangular, as in the figure of the type. In five smaller specimens from off Cape Romain, South Carolina, 353 fathoms, station 2626, and two from ofT Marthas Vineyard, 349 fathoms, station 1093, the gastric tooth projects only a little beyond the frontal ma
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