1894. PROCEEDINGS OF THE NATIONAL MUSEUM. 487 



The ambulatory feet are wide and nnicli compressed. Tlie anterior and 

 posterior margins are armed with sliari) spines, alternating in general 

 large and small. On the upper surface of the proximal end of the 

 merus of the fourth i)air of feet there is a row of fine spines; the corre- 

 sponding spines on the third pair of feet are smaller, and on the second 

 pair still smaller. 



Type.— So. 18537, U.S.N.]\r. Off the Pribylof Islands, Bering Sea, 

 station 3501, 688 fathoms. 



CE D I G N A T H V 8 , new genus. 



Similar to Dermatnrns^ but with the terminal Joints of the outer 

 maxillipeds much dilated as in JLiptdonaster. Tlie outer nnirgin of the 

 autennal scale is expanded and thin ; the inner margin is concave, giv- 

 ing the scale a half-moon shape. 



(EDIGNATHUS GILLI, new species. . 



Carapace longer than wide, convex in both directions. The areola- 

 tions are not well marked but can be made out. There are no spines 

 on the margin behind the antero lateral angles. The surface is set with 

 flattened plates moderately large, and of a deeper color than the sur- 

 face; these plates are surrounded by rows of short curled bristles; on 

 the anterior side of the plates are patches of holes larger than those 

 from which the hair arises; they may be the follicle holes caused by 

 some larger foum of bristle that has disappeared from the old dry speci- 

 mens from which this description is written. The lower surface of the 

 broad moon-shaped autennal scale is smooth, the upper surface is rough, 

 the outer edge has three or four short triangular teeth. The spine at 

 the external angle of the orbit is very small; the rostrum is simple, 

 short, and pointed. The distal ends of all the joints of the nuxxillipeds 

 are swollen, but in the ultimate and penultimate remarkably so. The 

 abdomen is as in Dermaturns mandti. The chelipeds are thickly set 

 with granular tubercles. The right one is very large and reaches nuich 

 beyond the ambulatory feet. The fingers gape widely from the palm 

 to the tips. The left cheliped is much smaller, and the hand in propor- 

 tion to the large one reminds one of Gelashnus among the Brachyura. 

 The fingers are spoon shaped; they have some very small tubercles ou 

 the edge, but the edge for the most part is black horn color. The am- 

 bulatory feet are rounded, short, and strong, without S])ines; the dac- 

 tyli are compressed and armed with spinules beneath. 



Types.— 1^0. 18525, IT.S.X.M.; locality unknown, 2 S . 



Xoa(/if^.— Alaska, W. IT. Ball; one claw, without label, l^o. 18524, 

 U.S.N.M. 



L E P E O PUS, new genus. 



Rostrum simple, triangular. Penultimate and ultimate joints of 

 maxillipeds not dilated. Autennal scale short, fiattened. Abdomen of 

 female much twisted to the right; first segment very small, second very 



