General information
Distribution map
Photographs
Illustrations
General information
Distribution map
Photographs
Illustrations
NC Physiographic Region(s): Piedmont; limits of range unclear
River Basin(s): currently known from Upper Cape Fear and middle Yadkin-Pee Dee River basins; likely has wider range
Adult Habitat: unknown
Juvenile Habitat: unknown
Reproductive Season: late summer, fall
Species associates: Procambarus (O.) acutus and Cambarus (D.) latimanus in Cape Fear; P. acutus and C. (D.) reduncus in Yadkin-Pee Dee; other members of the C. (P.) acuminatus complex have been found at nearby sites in both river basins but not at the same site
Conservation status: not protected
Identification references: Cooper 2001
Taxonomic Description:
body shape: dorsoventrally flattened; thoracic section with punctations and granulations dorsally and cobbled tubercles laterally; cephalic section with tuberclesNotes: separated from the species complex referred to as Cambarus (P.) sp. C (closely associated with C. (P.) acuminatus); required emending description of subgenus Puncticambarus to accomodate this species; because C. hobbsorum occurs in same range as other members of complex, it is hard to assign previous collections to the correct species without voucher specimens
coloration: variable but generally in shades of olive, green, blue-green, black and highlighted with tan, white, or orangeish tubercles (appears densely spotted) and ventrally; lateral surface of entire propodus of chelae bright orange, fading onto cheliped, tips of fingers orange, tan, or yellowish
spines: hepatic tubercles; branchiostegal tubercle or obsolete; single cervical spine or large spiniform tubercle; cephalic spine or tubercle
rostrum: long and acuminate, with strongly converging margins to acumen (acumen often "caret-shaped"); narrow overall; lacking median carina
areola: narrow and long
chelae: palm inflated; dorsal surface with squamous tubercles; costate distolateral and dorsolateral margins; mesial margin of palm with 2 rows of tubercles; strong to moderate dorsolongitudinal ridges on fingers; long plumose setae on opposable surface of fixed finger (adults and juveniles)
other characteristics: subtriangular outline of abdominal pleura; eyes large; suborbital angle subacute or obtuse
form I male gonopod: symmetrical; having a "disklike" caudal knob at base of central projection; central projection corneous, not tapered, and curved at about 90 degrees from shaft axis, with strong subapical notch; mesial process inflated, directed caudoproximally, and tapering to 2 miniscule "spines"