THE GKAPSOID CRABS OF AMERICA. 

 CHASMOCARCINUS LATIPES Rathbnn. 



57 



Chasmocarcinus Jatipcs RATHHUN, Proc. U. S. Nat. Mus., vol. 21, 1898, p. 

 G02, pi. 43, fig. 5 (type-locality, Magclalena Bay, Lower California, 

 Mexico, 51 fathoms, station 2833, Albatross; holotype female, Cat. No. 

 21592, U.S.N.M.). 



Diagnosis. Orbits directed obliquely forward and outward. An 

 antero-lateral marginal line. Sternum and abdomen of female 

 smooth and punctate. Ambulatory legs wide. 



FIG. 25. CHASMOCARCIXUS LATIPES, FEMALE HOLOTTPB, DORSAL VIEW, X 18- 



Description. Carapace two-thirds as long as broad. Fronto- 

 orbital distance less than one-half the width of the carapace. Sur- 

 face covered with large punctae which tend to coalesce; granulate on 

 the posterior half and toward the margins. Two very deep longi- 

 tudinal impressed lines in the center of the carapace. A distinct, 



Fio. 26. CHASMOCARCINUS LATIPES, FEMALE HOLOTYPE. a, ODTEK MAXILLIPEDS, is 



PLACE, X 5; 6, ABDOMEN AND PAUT OF STERNUM, X 3. 



though blunt antero-lateral margin. Front very faintly emarginate. 

 Eye not fitting closely in the orbit; upper margin of orbit concave, 

 directed obliquely forward and outward. 



Chelipeds similar to those of C. typicus. Carpus, however, nearly 

 square, propodus less arched than in typicus, fingers tapering regu- 



