264 



CRANGONIDvE. 



laminar appendage of the external antennne, a little longer 

 than their peduncle. The first pair of feet, with the hand, 

 smooth and rounded, the finger moderately curved ; the 

 second pair of feet minute. The segments of the abdomen 

 very distinctly sculptured ; the raised portions polished, 

 the depressions slightly pubescent : the third, fourth, and 

 fifth segments with a distinct central carina ; the sixth and 

 seventh channelled. 



Length seven-tenths of an inch. 



It differs for C. spinosus in the less regularly longitudi- 

 nal direction of the lateral raised lines on the carapace, the 

 less pointed and fewer teeth of this part, the longer propor- 

 tion of the antennae-scale with relation to the peduncle, 

 and, strikingly, in the sculpture of the abdominal segments, 

 and the extent and sharpness of the carina on this part. 

 Of the two specimens which I possess, one has several ova 

 attached to the abdominal false feet. 



