120 BULLETIN IGG, UNITED STATES NATIONAL MUSEUM 



Ischium of outer maxilliped with parallel margins, almost twice as 

 long as merus, which is a little wider posteriorly than ischium; 

 exognath just as long as merus and widest at middle. Chelipeds 

 rather slender, rough; carpus with two spinules on inner margin, a 

 spinule on outer surface near distal end; man us finely spinulous, about 

 twice as long as wide, with parallel margins; digits of same length as 

 manus, bent sh'ghtly downward. First and second ambulatories 

 slender, cylindrical, the second pair less than twice as long as carapace, 

 dactylus and propodus subequal; third and fourth legs shorter than 

 carapace and of subequal length, the fourth slenderer, the propodal 

 and terminal articles very slightly curved. 



FiGUiiE ;;i. — Cljjthrocerus yraualatas, female holotype: Dorsal view, X6H. 



Measurements. —Female (67447), length of carapace 3.2, width 3.4 

 mm. Male (67453), length 2.8, width 3.1 mm. 



Range.— Florida to Venezuela, 70 to 310 fathoms. 



Material examined. — As follows: 



Florida: John B. Henderson: Fowey Rocks: SE. by S., 70 fathoms, 

 no. 355, 2 males, 4 females (67454); 75-90 fathoms, no. 364, 5 males 

 (67453); 75-100 fathoms, no. 361, 3 females (1 with parasite) (67452); 

 85 fathoms, no. 363, 1 female (67451); 95 fathoms, no. 362, 1 male, 

 4 females (67450); E. by N., 90 fathoms, no. 352, 1 male (67449). 

 Ragged Key, E., 75-90 fathoms, no. 366, 2 males, 2 females (67448). 

 Sand Key, SE. by E., 75 fathoms, 2 females (67447). Ajax Reef, 

 70-90 fathoms, no. 370, 1 female (67446). 



Virgin Islands: Lat. 18°38'15" N., long. 65°00'30" W.; 310 

 fathoms; March 3, 1933; station 97, Johnson-Smithsonian expedition; 

 1 male (67820). 



Venezuela: Northwest of Trinidad; lat. 11°07'00" N., long. 

 62°14'30" W.; 73 fathoms; bu. M.; January 30, 1884; station 2120, 

 Albatross; 1 female, holotype (20510). 



