24 



RATHBUN 



prove to be distinct ; the gastric spine is shaped as in the figured type, 

 but a little narrower and more ascending; the merus of the first pair 

 of feet has one or two spines, of the second pair many spines. 



Distribution. — North Atlantic, from lat. 39° 56' 00" N., long. 69O 45' 

 00" W. to lat. 32O 27' 30" N., long. 770 20' 30" W., 349 to 1342 

 fathoms. North Pacific: Bering Sea, 399 fathoms; Washington, 859 

 fathoms. Ecuador, 1132 fathoms. 



PASIPH^A CORTEZIANA Rathbun. 

 Pasiphaa corteziana Rathbun, Proc. U. S. Nat. Mus., xxiv, 905, 1902. 



Carapace equal to the first five segments and part of the sixth segment 

 of the abdomen. Gastric tooth dentiform, continued back in a very blunt 

 carina; tip acute, upper margin nearly horizontal, anterior margin in- 

 clined slightly forward and upward, not as produced as the anterior 



margin of the carapace. Median 

 lobe of front triangular, obtuse. 

 Branchiostegal spine small, inserted 

 near the antero-lateral angle just be- 

 hind the anterior margin. Antero- 

 lateral sinus with sides forming an 

 obtuse angle. 



The eye-stalks are only slightly 

 enlarged distally, the corneas reddish 

 brown. The flattened antennular 

 scale falls short of the end of the 

 first peduncular segment. End of antennal scale more lobiform than in 

 P. pacifica. The merus of the first pair of legs is armed with 3 or 4 

 spines; of the second pair, with many spines. Distal end of second 

 segment of second pair ending in a small spine ; fingers longer than palm. 

 Abdomen without median carina. Telson very nearly as long as the 

 sixth segment, and forked with a deep sinus. 

 For the rest, almost as in P. pacifica. 



Ditnensions. — Length of male 64 mm., of carapace 23.8 mm. 

 Type locality. — Near Cortez Bank, Calif., in lat. 32° 44' 00" N., long. 

 119O 22' 00" W., 776 fathoms {Albatross station 3627). 



Fig. g. Pasiphiea corteziana. Station 3627. a. 

 Side view of carapace (X 2)- b. Telson (x 2§). 

 c. Hand of second pair (x 2§). 



PASIPH^A AFFINIS Rathbun. 

 Pasiphcra affinis Rathbun, Proc. U. S. Nat. Mus., xxiv, 905, 1902. 

 Very closely related to P. corteziana. 

 Carapace equal to the first four segments and half of the fifth seg- 



