422 CRAYFISHES. 



58. Cambarus mississippiensis. 



Cambarus mississippiensis Faxon, Proc. Ainer. Acad., 1884, 20, p. 123. 



Tijpe locality: — Macon, Noxubee Co., Miss. Types, Coll. O. P. Hay; 

 paratype, M. C. Z., No. 3,563 (1 9 ). 



59. Cambarus lancifer. 



Cambarus lancifer Hagen, Mem. M. C. Z., 1870, 2, p. 59. 



Cambarus faxonii Meek, Amer. Nat., Dec. 1894, 28, p. 1042. Type locality: 

 St. Francis River at Greenway and Big Bay, Arkansas. Cotypes, U. S. N. M., 

 No. 19,331; M. C. Z., No. 4,220; Mus. Zool. Torino. 



Type locality: — Root Pond, Miss. Type, M. C. Z., No. 306 (1 d' f. I.). 



§ VII. Third segment of third pair of legs of male hooked. First pair of 

 abdominal appendages of male short and thick, terminating in two large recurved 

 tooth-Uke processes, the larger formed by the outer part of the appendage, the 

 smaller by the inner. (Subgen. Bartonius of Ortmann.) 



60. Cambarus hamulatus. 



Orconectes hamulatus Cope and Packard, Amer. Nat., Nov. 1881, 15, p. 881. 



Type locality: — Nickajack Cave, Tennessee. Cotypes, M. C. Z., No. 3,678 

 (1 d^f.IL, 1 9). 



61. Cambarus setosus. 



Cambarus setosus Faxon, Bull. M. C. Z., Dec. 1889, 17, p. 237. 

 Type locality: — Wilson's Cave, Jasper Co., Missouri. Types, M. C. Z., 

 No. 4,200; paratypes, M. C. Z., No. 4,201, 4,202; U. S. N. M., No. 25,828. 



62. Cambarus ayersii. 



Cambarus ayersii Steele, Univ. Cincinnati Bull., 1902, No. 10, p. 18. 



Type locality: — Fisher's Cave, near Springfield, Greene Co., Missouri. 



63. Cambarus extraneus. 



Cambarus extraneus Hagen, Mem. M. C. Z., 1870, 2, p. 73. 

 Type locality: — Tennessee River, Tenn., near the boundary of Georgia. 

 Types, M. C. Z., No. 175; paratype, U. S. N. M., No. 4,957. 



63a. Cambarus extraneus girardianus. 



Cambarus girardianus Faxon, Proc. Amer. Acad., 1884, 20, p. 1 17. 



Type locality: — Cypress Creek, Lauderdale Co., Ala. Cotypes, U. S. N. M., 

 No. 4,882; M. C. Z., No. 3,560. 



