CAMBARUS. NB) 
acumen of the rostrum, and the 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. afinis. I suspect that the female specimen from Green- 
ville, South Carolina, in the Berlin Museum, referred to C. afiius by Erich- 
son, belongs here. 
The Saluda River specimen is the largest-seen by me. It measures 34 
inches in length. Bundy gives the length of the largest examined by him 
as 33 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. spinosus. 
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 
(Pl. IX. figs. 7, 7’) agree pretty well with Bundy’s description of these parts 
in @, spinosus, 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. spinosus. 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 margin 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 C. syzzosus from 
Georgia, I cannot be positive of its specific identity with the Alabama 
specimens. 
