422 CRAYFISHES. 
58. CAMBARUS MISSISSIPPIENSIS. 
Cambarus mississippiensis Faxon, Proc. Amer. Acad., 1884, 20, p. 123. 
Type 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 faxonti 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. 19,3831; M. C. Z., No. 4,220; Mus. Zool. Torino. 
Type locality: — Root Pond, Miss. Type, M.C. Z., No. 306 (1 of. 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-like processes, the larger formed by the outer part of the appendage, the 
smaller by the inner. (Subgen. Barronius 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 
(i quislie i 2). 
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 ayersti Steele, Univ. Cincinnati Bull., 1902, No. 10, p. 18. 
Type locality: — F isher’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. 117. 
Type locality: — Cypress Creek, Lauderdale Co., Ala. Cotypes, U.S. N. M., 
No. 4,882; M. C. Z., No. 3,560. 
