Thanks to Dan Jones (Clemson University, SC) for this photograph from
Yadkin County, NC!
General information
Distribution map
Photographs
Illustrations
NC Physiographic Region(s): mountains and upper western piedmont; higher elevations
River Basin(s): upper Yadkin-Pee Dee, upper Roanoke
Adult Habitat: “rocky areas of streams” (Hobbs Jr. 1989); fast-flowing (always lotic), clear water; mostly under rocks in riffles; reproduction in burrows
Juvenile Habitat: burrows
Reproductive Season: late fall, winter, early spring; reproduce in burrows (Smart 1962)
Species associates: C. bartonii, C. (P.) sp. C, others
Conservation status: not protected
Identification references: Hobbs Jr. 1989, Hobbs Jr. 1991, Jezerinac et al. 1995
Taxonomic Description:
body shape: slightly dorsoventrally flattenedNotes: may not find in open surface waters during winter, as this species reportedly burrows to reproduce
coloration: dark in color - shades of tan, brown, and reddish or rust; mostly solid coloration; rostral margins reddish; cream underside
spines: cervical spines/tubercles absent; cephalic spine or tubercle present; branchiostegal spine weak
rostrum: swollen, slightly concave margins; lacking marginal spines; smallish in size; concave or ladel-like; triangular in shape; with corneous tubercle at apex
areola: medium-wide, bearing approx. 10 punctations across the narrowest part
chelae: smooth; fingers with poorly defined dorsolongitudinal ridges; gap between fingers; long setae at base of fixed finger and along mesial margin of fixed finger; wide/robust; dactyl less than twice length of mesial margin of palm; one row of weak tubercles along mesial margin of palm
other characteristics: eyes well developed; suborbital obtuse or obsolete
form I male gonopod: corneous central projection truncated and bearing subapical notch; mesial process inflated at base and tapering