20 RATHBUN 
the abdomen, and reaches about to the end of the inner uropod; it is 
broadly channeled, extremity truncate or slightly convex, and armed with 
about 13 slender bristles. Eyes brown in alcohol. In the first pair of 
legs the palm is about one third longer than the fingers; in the second 
pair the right merus has 14 spines, the left 13. 
PASIPHAZA PACIFICA Rathbun. 
Pasiphea pacifica RATHBUN, Proc. U. S. Nat. Mus., XXIV, 905, 1902. 
The carapace is a little less than half the length of the abdomen, 
measured on the median line; it is laterally compressed and rises into a 
well-marked ridge extending nearly to the posterior margin and terminat- 
ing anteriorly in the median tooth; the ridge is rounded except on 

Fic. 2. Pasipheapacifica. @ (X14). Station 3186. 
the forward part of the gastric area, where it forms a thin, sharp keel 
terminating in a sharp pointed tooth, which is not nearly so advanced as 
the anterior margin. ‘This tooth is variable, being more or less inclined 
upward; its terminal portion is usually slender, its anterior margin con- 
cave. Median tooth of frontal margin narrow, rounded; infra-orbital 
and antennal angles rounded and ill-defined; antero-lateral angle 
rounded and slightly obtuse. Behind this angle the antero-lateral 
margin runs almost directly backward for a short distance, then turns 
abruptly downward, forming an obtuse angle, and joins obliquely the 
infero-lateral margin. Above this sinus there is a sharp spine on a level 
with the middle of the basal segment of the antenna. There is a well- 
defined blunt ridge on each side of the carapace, running from the 
