Classification: Nongame Fish - Crustacean
National Range: Known only from North Carolina in the upper Broad, Catawba, and Yadkin-Pee Dee river basins in” (Cooper 2006)
NC Physiographic Region(s): Blue Ridge Foothills and Upper Piedmont Plateau
River Basin(s): Broad, Catawba, Yadkin-Pee Dee
Adult Habitat: Adults were collected from streams 3-4m wide with substrata generally dominated by sand, beneath undercut banks, and in leaf packs and root wads. (Simmons and Fraley 2008)
Reproductive Season: Form I males have been found in April, October, and November.
Species associates: C. (C.) lenati, C. (P.) spicatus, C. (H.) longulus, C. (J.) asperimanus,C. (P.) sp., C. sp. C.
Conservation status: not protected
Identification references: Cooper 2006
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The following illustration is reproduced from:
Cooper, J.E. 2006. A new species of crayfish of the genus Cambarus Erichson, 1846 (Decapoda:Cambaridae) from the eastern Blue Ridge foothills and western Piedmont Plateau of North Carolina. Proceedings of the Biological Society of Washington.119(1):67-80.
Fig. 1. Cambarus johni. All fromholotypic male, form I (NCSM 24035), except B, C from morphotypic male, form II (NCSM24034), and J, fromallotypic female (NCSM 7544): A, lateral aspect of carapace; B, E, mesial aspect of gonopod (first pleopod);C, F, lateral aspect of gonopod; D, dorsal aspect of carapace; G, caudal aspect of in situ gonopods; H,epistome and renal apertures; I, coxa of right fourth pereopod; J, annulus ventralis and postannularsclerite; K, antennal scale; L, dorsal aspect of distal podomeres of right cheliped. Scaleline 5 2 mm
Credit NCWRC for all photos.