S(fME XFAV DEEP SEA VRUSTACEAXS— BENEDICT. 



299 



Long-th of carapace, 8.7 mm.; breadth, -t mm.: lenoth of rostrum, 

 ;-) mm.; length of chelipeds, 18 mm. 



Locality. — Alhafrosx station 2152, in 387 fathoms, oti' Habaua. 

 I Ty2?e. —Cat. No. 7795, U . S. N . M . 



Genus PTYCHOGASTER A. Milne-Edwards. 

 PTYCHOGASTER DEFENSA, new species. 



■ Fii;. 'A. — I'TV(H()(;AsTr,K dkkknsa, x 1. 



The rostrum is slender and styliform, about twice as long as the 



eyes. The gastric area is armed with seven slender spines similar to 



the rostrum in appearance, but somewhat shorter; one is placed in the 



center of the area and the others at equal intervals from it, forming a 



Proc. N. M. vol. xxvi— 02 21 



