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 33.3 mm. ; 
Distribution.— Santa Barbara Chan- 
nel, California, 265 to 322 fathoms (=== 
(Albatross stations 2903, 2904, 2960, Fic. 4. ae emarginata. 9. Station 
3200, and 3201). Gulf of California, ees oie a Hes 8) 5 
off Concepcion Bay, Lower California, 857 fathoms, station 3009 (type 
locality). 
PASIPHA‘A PRINCEPS Smith. 
Pasiphaé princeps SMITH, Rept. U. S. Commr. Fish and Fisheries for 1882, 
p. 381, pl. v, fig. 2 (1884); of. cit. for 1885, p. 682 (1886). 
Pasiphaeia princeps F AXON, Mem. Mus. Comp. Zool., XVIII, 175, 1895. 
One large female, 167 mm. long, was dredged by the A/éatross 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 ProfessorSmith. 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 off Marthas Vineyard, 349 fathoms, 
station 1093, the gastric tooth projects only a little beyond the frontal 
margin, and the antero-lateral sinus has margins oblique to each other ; 
otherwise as in the preceding. 
In the specimen from off Ecuador described by Faxon (/oc. cit.) the 
merus of the first pair of feet is unarmed. 
The Washington specimen agrees quite closely with that from station 
2546, excepting that the median carina of the carapace is sharper along 
its posterior two thirds. The small individual from Bering Sea may 
