NC Physiographic Region(s): southwestern mountains

River Basin(s): upper Hiwassee (headwaters)

Adult Habitat: “streams” (Hobbs Jr. 1989); “very swift, clear water flowing over a bed of sand and rocks; although occurring in riffle areas, the species is most common in the rocky areas between riffles, under rocks, and in debris trapped by the rocks; this apparently allows it to partition the habitat with the sympatric C. bartonii.” (NHP ICAS 1999)

Juvenile Habitat: n/a

Reproductive Season: spring and fall; extended

Species associates: collected alone or with C. bartonii

Conservation status: state-listed as Special Concern in North Carolina (J.E. Cooper in Clamp 1999); considered by Taylor et al. (1996) to be Endangered

Identification references: Hobbs Jr. 1989, Hobbs 1991; also see description by J.E. Cooper in Clamp (1999).

Taxonomic Description:

body shape: n/a
coloration: olive brown, with light greenish tan markings, chela whitish tan, lateral and ventral surfaces and tubercles pinkish to orangeish, adomen olive green
spines: cephalic and marginal spines present; branchiostegal spines small, cervical spines reduced to row of 1 to 5 small tubercles
rostrum: dorsal surface of rostrum excavate, somewhat small with marginal tubercles or notches located at base of acumen or more distal, margins narrow and converging to base of acumen, where often moderately constricted
areola: medium-wide and punctate
chelae: robust; with single or double row of tubercles on mesial margin of palm, sometimes with tubercles between rows; well-developed dorsolongitudinal ridges
other characteristics: eyes well-developed
form I male gonopod: terminal elements equal in length and somewhat short; corneous central projection with subapical notch and curved over 90 degrees; mesial process bulbous at base and tapering distally