22 RATHBUN 



Gulf of Alaska southward to the Gulf of California, in 53 to 399 fathoms 



(one specimen from 13 fathoms, if the label be correct). The following 



are the specific localities of the Albatross represented : 



North of Unalaska, 399 fathoms, station 3329. 



Portlock Bank, Alaska, 230 fathoms, station 2858. 



Off Queen Charlotte Sound, British Columbia, 204 fathoms, station 2861. 



Queen Charlotte Sound, British Columbia, 238 fathoms, station 2862. 



Gulf of Georgia, British Columbia, 67 fathoms, station 2863. 



Strait of Fuca, 135-152 fathoms, stations 3449, 3454-3456. 



Puget Sound, 82 fathoms, station 3067. 



Off Tahwhit Head, Washington, 178 fathoms, station 3076. 



Off Pigeon Point, California, 296 fathoms, station 3112. 



Monterey Bay, California, 13-382 fathoms, stations 3134, 3202, 3669. 



Off Point Sur, California, 316, 328 fathoms, stations 3188, 3186 (type). 



Off San Simeon Bay, California, 53 fathoms, station 3191. 



Off San Luis Obispo Bay, California, 252 fathoms, station 3195. 



Off Point Conception, California, 278, 284 fathoms, stations 3198, 2892. 



Santa Barbara Channel, California, 233-280 fathoms, stations 2840, 2960, 



3199, 3200, 3201. 



Off San Miguel Island, California, 376 fathoms, station 2896. 

 Off Santa Cruz Island, California, 266, 269 fathoms, stations 2947, 2948. 

 Off San Diego, California, 339 fathoms, station 2925. 

 Gulf of California, northwest of Tiburon Island, 145 fathoms, station 



3 1 5- 



Our species differs from the others with carinated carapace in having 



the branchiostegal spine situated above the angle of the antero-lateral 



sinus. 



PASIPH^EA EMARGINATA Rathbun. 



Pasiph&a emarginata RATHBUN, Proc. U. S. Nat. Mus., xxiv, 905, 1902. 



I have proposed the name P.faxoni for P. acntifrons Faxon, not Bate. 

 There are in the National Museum specimens which I believe to be P. 

 acutifrons Bate, from the west coast of Patagonia, 194 fathoms, station 

 2784, Albatross. P.faxoni differs from them in the broader median lobe 

 of the front ; in the antero-lateral sinus being an obtuse angle, while in 

 P. acutifrons it is a right angle or less ; in the sixth abdominal segment 

 compressed, blunt above, scarcely carinate, in P. acutifrons sharply cari- 

 nate ; in the telson much shorter than the sixth segment, in P. acutifrons 

 very little shorter ; in its shallower notch, which is broader than long. 



P. emarginata differs from P. faxoni as follows : 



The median carina is less sharp and less prominent ; the gastric tooth 

 smaller ; the carapace proportionally higher in its posterior portion, the 

 branchial ridge more sinuous ; the carapace relatively longer, being equal 

 to the first five segments and half of the sixth segment of the abdomen ; 



