l^ 21 ] Schmitt: The Marine Decapod Crustacea of California 29 



Pasiphaea pacifica Kathbun 



Pasiphaea pacifica Kathbun, Proc. U. S. Nat. Mus., 24, 905, 1902 ; H. A. E., 

 10, 20, fig. 2, 1904. 



Fig. 14. Pasiphaea pacifica; 5, a, lateral view, X 1%; b, telson, X 3% (from 

 Kathbun, U. S. 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" (Kath- 

 bun). 



Bemarlcs. — Differs from other species with earinated carapace in having the 

 branchiostegal spine situated above the anterolateral sinus (Kathbun). 



