STALK-EYED CRUSTACEA 253 



the abdomen of the female is the base of the fifth 

 segment. This organ terminates not in the seventh joint, 

 but in the two lateral lobes of the sixth segment, between 

 which the seventh segment is set ; the seventh segment 

 is small and oval. The abdomen of the female covers 

 completely the entire under surface of the body, except 

 the anterior three-fourth of the external maxillipedes and 

 the basal joint of the legs. 



The colour of the entire upper surface of the carapace 

 is green, with the warts or teeth in the antero-lateral 

 margin purple. The under surface is dirty yellow-green 

 marbled with green of the same shade as that of the 

 carapace. The walking legs, the joint of the first pair of 

 legs, and the entire hand and fingers, except the under 

 margin and the back of the palm and the fingers, which 

 are a dirty white, are coloured dark purple. The small 

 warts ornamenting the border on the superior and outer 

 margin are also of the same shade of purple. The hairs 

 are brown. 



Range. — West Indian Islands, Central America, Rio 

 de Janeiro. 



3. Uca laevis. 

 Uca Icevis . . . H. Milne Edwards. 



Lateral border of the carapace scarcely indicated. 

 Pterygostomian regions smooth. First pair of legs of 

 the male very large ; the fourth joint and the hand are 

 very long, and are covered with wart-like elevations ; 

 the legs of the second pair arc a little longer than the 

 others. 



Range. — West Indies. 



