North Carolina Crayfishes 107 



River" (Lachner and Jenkins 1971:62). Little has been reported on the 

 distribution and natural history of this species, especially in 

 North Carolina, and it remains one of the State's least known and 

 ostensibly rarest crayfishes. 



Orconectes (Procericambarus) spinosus (Bundy) 

 There are no published localities for the occurrence of any 

 member of subgenus Procericambarus, and specifically for O. (P.) 

 spinosus, in North Carolina. Hobbs (1981:297) indicated its general 

 range as "Streams in the Coosa and Tennessee river basins in 

 Alabama, Georgia, North Carolina, Tennessee, and Virginia," but later 

 (Hobbs 1989:50, 85, 89) did not include North Carolina within the 

 range of the species. Prior references to Cambarus (= Orconectes) 

 spinosus in the Tar River (Faxon 1890:632; Harris 1903: 130, 142; 

 Ortmann 1905:115, 1931:87, 88), all apparently based on specimens 

 reported by Bundy (1877) from Rocky Mount, refer to the undescribed 

 Orconectes sp. A. 



North Carolina specimens assigned to O. spinosus have been 

 collected at the following localities in the Cheoah River watershed 

 of the Little Tennessee River basin: Graham Co. — (1) Tulula 

 (Talula, Talulah) Crk at SR 1211, ca. 0.3 air mi (0.5 air km) 

 E Robbinsville; 1 6 II, 1 9- (NCSM C-252), 25 Nov 1978, DLS, 

 ALB; (2) Cheoah R just upstream from sewage treatment plant 

 outfall Robbinsville; 5 6 II, 3 9 (NCSM C-389), 8 Oct 1980, J. H. 

 Davies; (3) Tulula Crk at NC 143, 0.3 air mi (0.5 air km) E cntr 

 Robbinsville; 2 6 I, 2 6 II, 4 9 (NCSM C-1213), 23 Oct 1982, 

 RWV, ALB, D. Sever, 5 ovig 9 (NCSM C-2302), 2 8 I, 1 6 II, 19 

 j 6, 9 j 9 (NCSM C-2303), 25 Apr 1985, ALB; (4) Tulula Crk at 

 SR 1138, just N Robbinsville; 7 6 I, 1 6 II, 5 j S, 3 j 9 (NCSM 

 C-2306), 2 ovig 9 (NCSM C-2312), 2 ovig 9 (NCSM C-2313), 4 6 

 I (NCSM C-2352), 26 Apr 1985, ALB. 



At locality (2), three of the form II males showed considerable 

 exoskeleton decalcification, and one of them and another form II 

 male and one female were soft. The specimens taken at locality (3) 

 were found under rocks in the creek, and the species appeared to be 

 more abundant than the only other crayfish found there, C. b. bartonii. 

 The two species also occurred together at locality (4). 



Orconectes (Procericambarus) sp. B 

 A large species of Orconectes, previously considered to be 

 introduced Orconectes juvenilis (Hagen) [= Orconectes (Proceri- 



