THE GEAPSOID CRABS OF AMEBICA. 



143 



most prominent at antero-lateral angle, but disappearing near orbit. 

 Front slighth'^ advanced; orbits oval, filled by the eyes. 



Chelipeds large; palm snboblong, widening distally, upper and 

 lower margins slightly convex; thumb shorter than dactyl, slightly 



Fio. 87. — PixxixA FAKA (31599), X G. a, Tiiino leo of female ; 6, third leg of male ; 



C, UIGUT CUELA of MALE ; (1, LEi'T CHELA OF FEMALE ; 6, EVE IN ORBIT, FRONT VIEW. 



deflexed Avith the end upcurved, edge finely crenulate and with a dis- 

 tal notch into which the tip of the dactylus fits; dact}^ curved, a tri- 

 angular tooth near its base, and forming when closed a moderate gape 

 with the thumb; fingers hairy within and toward their base. 



Fio. 88. — Pixnixa faba (31599). 



a. Outer maxillii-ed op female, 



OF MALE, X Gi, 



X IG ; b, ABDOMEN 



Legs similar in shape, except merus of first leg which is concave 

 above instead of convex as in the other pairs. Propodi tapering dis- 

 tall}'^, dactyli short and strongly curved. First leg narrow, reaching 

 to end of propodus of second; second and third legs subequal in 



