1921] Schnuitt: The Marine Decapod Crustacea of California 29 
Pasiphaea pacifica Rathbun 
Pasiphaea pacifica Rathbun, Proc. U. S. Nat. Mus., 24, 905, 1902; H. A. E., 
10, 20, fig. 2, 1904. 
Fig. 14. Pasiphaea pacifica; 2, a, lateral view, X 144; b, telson, KX 34% (from 
Rathbun, U. 8S. N. M.). 
Characters.—Carapace a little less than half the length of the abdomen. Gas- 
tric tooth variable, more or less inclined upward, terminally usually slender, 
anterior margin concave; continued back as a thin, sharp keel, which becomes 
a rounded ridge behind the gastric region. Branchiostegal spine situated over 
the angle of the anterolateral sinus. Second to sixth abdominal segments, inclu- 
sive, carinate. Telson four-fifths as long as sixth somite of abdomen; dorsal 
surface channeled; extremity with a deep notch. 
Dimensions.—Type, female: length 64.8 mm.; length of carapace 20.3 mm. 
Type Locality—Off Point Sur, California, 328 fathoms (‘‘Albatross’’ station 
3186). 
Distribution—From Unalaska and the Gulf of Alaska, to the Gulf of Califor- 
nia, in 53 to 799 fathoms. Most frequent between 200 and 300 fathoms off the 
California coast. ‘‘One specimen from 13 fathoms, if label be correct’’ (Rath- 
bun). 
Remarks.—Differs from other species with carinated carapace in having the 
branchiostegal spine situated above the anterolateral sinus (Rathbun). 
