THE GRAPSOID CEABS OF AMERICA. 81 



PINNOTHERES MULINIARUM, new species. 



Plate 18, figs. 2 and 3. 



Type-locality. Lower California ; in Mulinia, sp. ; 1 male holotype 

 '(23443). 



Diagnosis. Male, carapace suborbicular, smooth. Fourth leg 

 much the smallest. Dactyli of legs curved, fourth one less strongly 

 falcate. Abdomen very long. 



Description of male. Carapace transversely suborbicular, poste- 

 rior margin nearly straight ; front strongly deflexed, outline slightly 

 arched as seen from above. 



Palp of outer maxilliped of large size, short and very wide ; carpus 

 "short; propodus about as long as carpus, suboblong, end obliquely 



\ 



FIG. 38. PINNOTHERES MULINIARUM, OUTER MAXILMPED OF MALE HOLOTYPE, X 90. 



rounded ; dactylus broad, lunate, attached near base of propodus and 

 following its curve, and reaches nearly to its extremity. 



Chelipeds and lower surface of body pubescent. Manus widening 

 : a little distally, lower margin straight, upper convex; both fingers 

 have tips curved and crossing each other. 



Of the legs the fourth is much reduced and does not reach be- 

 .yond carpus of third; margins of legs hairy, especially on merus 

 .joints; anterior margin of propodi convex, posterior margin straight 

 in legs 1, 2, and 3, concave in leg 4; dactyli 1, 2, and 3 curved, stout 

 except tip, which is slender and long ; dactylus 4 straighter in basal 

 half but still curved. 

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