THE SPIDER CRABS OF AMERICA 117 



Range. — South of Nantucket, Massachusetts, to off Cape Hatteras, 

 North CaroUna. Depth 49 to 373 fathoms. 

 Material examined. — See table, page 116. 



COLLODES LEPTOCHELES Rathbun 



Plate 38, figs. 5 and 6 



Collodes leptocheles Rathbun, Proc. U. S. Nat. Mus., vol. 17, 1894, p. 53 

 (type-locality. Gulf of Mexico, 68 to 169 fathoms; holotype, Cat. No. 9748, 



U.S.N.M.). 



Diagnosis. — No median spines. Carapace granulate. Rostrum 

 bidentate. Spine on fifth abdominal segment. Chelipeds slender. 



Description. — Allied to C. 7'ohustm; surface granulate, without 

 median spines. Rostrum divided by a V-shaped notch into two 

 acute teeth shorter than in rolustus, their outer margin convex 

 Interantennular spine rather slender, extending a little beyond the 

 rostrum. Postorbital tooth long, exceeding the eyes, and pointing 

 directly outward. 



Fig. 42.— Collodes leptocheles, male (9748). o. Abdomen, X 4.66. b. Rostrum, X 12.66. c. Left 



CHELA, X 7.33 



Abdomen of male broader than in robustus, constricted at fifth 

 segment, which bears a long spine directed downward and backward; 

 a sharp median tubercle on first segment; tips of first pair of append- 

 ages more slender than in rohustus. A small spine is present on the 

 fifth segment in the female. 



Inner margin of basal article of antenna very prominent, cut into 

 three coarse spiniform teeth; outer margin also dentate with four or 

 five teeth including the one at the extremity. Chelipeds weak in both 

 sexes and about as long as carapace; hand slender, fingers as long as 

 palm and very narrowly gaping in their basal portion. First and 

 second pairs of legs nearly equal in length, second often exceeding 

 first, about twice as long as carapace; dactylus of last two pairs longer 

 than propodus. 



Color, — In alcohol, a pale ecru. 

 5487— 25t 10 



