CAMBARUS. 117 



acumen of the rostrum, and t lie anterior process of the epistoma is longer 

 and not emarginate. 



Before this species was well known, the female might easily have been 

 confounded with C. affinis. 1 suspect that the female specimen from Green- 

 ville, South Carolina, in the Berlin Museum, referred to C. affinis by Erich- 

 son, belongs here. 



The Saluda River specimen is the largest seen by me. It measun 

 inches in length. Bundy gives the length of the largest examined by him 

 as 3| inches. 



Specimens collected for the U. S. National Museum in Lauderdale Co., 

 Alabama, by C. L. Herrick, agree in most respects with the specimens from 

 Georgia, but differ as follows. The lateral margins of the rostrum, instead 

 of being very nearly parallel from the base to the lateral spines, converge 

 very perceptibly from the base to midway between the base and the lateral 

 spines; the epistoma is longer, but emarginate in full-grown specimens, like 

 the type form; the carapace is more heavily punctate. I am inclined to 

 regard it as a variety of C. spiriosus. 



Among these specimens from Lauderdale Co. is the first form of the 

 male, in which the hand is broader and shorter-fingered than in the second 

 form, and the hooks on third legs larger; the first abdominal appendages 

 (PI. IX. figs. 7, 7') agree pretty well with Bundy's description of these parts 

 in C. spiriosus, but the outer ramus is a little longer than the inner. The 

 shoulder at the base of the rami, on the anterior border, is very prominent ; 

 the inner ramus is thicker than the outer, lanceolate at the tip, the outer 

 aculeate at the tip. The rami form a hardly perceptible angle with the basal 

 part of the appendage. The coloration of these specimens agrees with 

 Bundy's description of the color markings of C. spiriosus. The fingers have 

 a dark band near their tips, the tips being orange; outer margin of outer 

 finger with a dark stripe continued on the outer — vgin of the hand to 

 the carpus; two or three dark spots on the hand at the base of the mova- 

 ble finger. Until I have seen the first form of the male of f '. spiriosus from 

 Georgia, I cannot be positive of its specific identity with the Alabama 

 specimens. 



