CRAYFISHES. ' 377 



The villosity may be an evanescent character, as it is a condition often 

 apparent in individuals that have recently undergone a moult; at a later period 

 the setae are apt to disappear by attrition. 



U. S. National Museum, Nos. 20,379, 12 c? f. II., 14 9 . From a small 

 stream flowing from a pond fed by the cave stream known as John Ross Spring, 

 near Rossville, Walker Co., Georgia, Aug. 23, 1901, William Perry Hay coll. 



Cambarus PUTNAM! Faxou. 



Upward of one hundred specimens of a crayfish closely resembling C. putnami 

 were collected by Mr. W. P. Hay in southwestern West Virginia in the summer 

 of 1900. They were found in the shallower parts of streams, usually under 

 flat stones, — in Barrenshe Creek, near Perryville, U. S. N. M., No. 25,018, 

 28,613, and Horsepen Creek, (U. S. N. M. No. 28,612) and War Creek (U. S. 

 N. M. No. 28,614). In these specimens the rami of the gonopods are a trifle 

 longer than in the types of ('. putnami from Kentucky, the rostrum, moreo\'er, 

 shows a pretty constant faint carina on its upper surface, near the tip, and the 

 anterior angle of the epistome is truncate. These peculiarities do not seem to 

 me important enough to separate this form nominally from C. putnami. 



According to Mr. Hay's notes their colour when alive was olive-green on the 

 dorsal surface of the body and chelipeds, changing to vinaceous on the sides, 

 under parts and other api^endages; the tips of the fingers were horn-yellow and 

 preceded by a rather broad band of dark orange-red. 



Cambarus longidigitus Faxon. 



New locality: — James River, Springfield, Green Co., Missouri (U. S. N. M. 

 No. 20,856). 



James River, Missouri, without further specification of locality, is the type 

 locality of Camdarus whitmani Steele,' wMch as far as can be seen from the 

 description is the same as C. longidigitus. 



Cambarus virilis Hagen. 



New localities: — Indiana: Prairie Creek, Scotland, Green Co. Illinois: 

 Henderson Co.; Kankakee River, Momence, Kankakee Co. Michigan: Belle 

 Isle, Detroit, Wayne Co. ; Pigeon River, Caseville, Huron Co. ; Bird Creek, Port 



'Univ. Cincinnati Bull. No. lU, 1902, p. 24. 



