628 Bulletin American Museum of Natural History [Vol. XLVIII 



Color. — The preserved specimens show a great deal of dark color on the cara- 

 pace; in the type-specimen the front is light with a narrow, dark, median line, the 

 extreme rear is light, the remainder is dark shading to nearly black; chelipeds and 

 legs mostly light. 



This is the Pacific counterpart of P. shoemakeri 1 which inhabits the 

 Gulf of Mexico and the West Indies. The Atlantic species has a longer 

 carapace with smaller areoles and wider furrows; the fingers are nar- 

 rower and the legs much slenderer. 



Fig. 6. Parapinnixa nitida, Pichilinque Bay, abdomen of d 1 , X 27. 



Parapinnixa nitida (Lockington) 



Text Figure 6 



Pinnixa (?) nitida Lockington, 1877, Proc. California Acad. Sci., VII, 1876, p. 155 



[11], part (type-locality, Angeles Bay). 

 Parapinnixa nitida Rathbun, 1918, Bull. U. S. Nat. Mus., No. 96, p. 107, text-fig. 58, 

 and synonymy. 



Pichilinque Bay; by electric light; 1 c? . 



Carapace 2.6 mm. long, 5.6 mm. wide. The male is similar in shape 

 to the female which is known to us only through Holmes's figure, the type 

 specimen itself being no longer extant. Just behind the front there is a 

 transverse furrow which laterally curves forward until it meets the upper 

 margin of the orbit. The carpus and propodus, taken together, are more 

 nearly of a size in the first three ambulatory legs than is represented 

 in Holmes's figure where the second and third legs were narrowed by 

 perspective. 



iRathbun, 1918, Bull. U. S. Nat, Mus., No. 97, p. 95, PI. xxn, figs. 1-4, text-fig. 48. 



