THE GEAPSOID CRABS OF AMERICA. 



67 



CHASMOCARCINUS LATIPES Rathbnn. 



Chasmocarcinns latipcs Rathhun, Proc. U. S. Nat. SIus., vol. 21, 1S08, p. 

 602, pi, 43, i\s. 5 (type-locality, Magdalena Bay, Lower California, 

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

 21302, 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. CHASMOCARCINUS LATIPES, FEMALE HOLOTYPE, DOESAL VIEW, X 11. 



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. — Chasmocaucinds latipes, female holotype. a. Outer maxillipeds, in 



PLACE, X 5; b, ABDOMEN AND PART OP 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- 



