CALIFORNIA STALK-EYED CRUSTACEA. 117 



outer angle of the second joint of the antenna is long and narrow, reach- 

 ing beyond the middle of the acicle; acicle narrow, oblong, straight, the 

 tip rounded, the margins, especially the inner, setose. The last two joints 

 of the maxillipeds are not dilated. Chelipeds with transverse granulated 

 ridges which are furnished with a fringe of appressed sette on the distal 

 side; merus of the large cheliiJed with 5-6 teeth on the anterior margin; 

 carpus armed in front with three teeth, the proximal one being quite 

 prominent; hand crossed by double rows of granules which become 

 broken up into separate groups on the pollex; fingers with tufts of setas; 

 merus of the small cheliped armed in front with several spines which 

 decrease rapidly in size towards the distal end; anterior margin of the 

 carpus with three teeth, the proximal one much the largest; hand narrow, 

 anterior margin of the palm with four small teeth at the ends of lines of 

 granules; fingers hairy, longer than the palm; a group of granules above 

 the base of the dactyl. Ambulatory legs crossed with setose striae; claws 

 long and sharp. 



Described from two specimens obtained from the 

 National Museum. 



Pribyloff Is. (Brandt); Kadiakls.; Behring Is. (Schal- 

 feew); lat. 55° 34' 30" N.; Ion. 162° 31' 45". W.; 19 

 fathoms! 



Genus (Edignathus Benedict. 



Carapace lyrate, convex, devoid of spines or tubercles and furnished 

 with a short simple rostrum. Antennal acicle flattened, the inner margin 

 thick and concave, the outer thin and convex; last two joints of the 

 peduncle subcylindrical; flagellum long. Maxillipeds subpediform; the 

 last two joints dilated. Chelipeds unequal; tips of the fingers excavated 

 within. First three pairs of ambulatory legs subequal, subcylindrical; 

 dactyls with curved, corneous claws. Abdomen soft, thick, broad, and 

 loosely inflexed, the basal, and to a less extent, the last two segments 

 strengthened by calcareous plates. 



Type. — 0. Brandti (Schalfeew). 



This genus is closely allied to Dermaturus with which 

 it has been united by Bouvier. It differs from Derma- 

 turus in having a more or less crescent-shaped acicle, 

 in the different marking of the carapace, and in not 

 having the last two joints of the maxillipeds dilated. 



