Procambarus chacei Hobbs 1958
Creators: name: Kendrick, Michael R.
name: Williams, Bronwyn W.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Cambaridae
Procambarus
Procambarus chacei

description: Procambarus chacei Hobbs, 1958
Figures 1, 2, 6.
Procambarus chacei Hobbs, 1958a.— Cooper 1998: 89.— Price & Welch 2009: 9:14.— Taylor et al. 2007: 385.— Simon 2011: 84.— Thoma 2015: 396.—Crandall & DeGrave 2017: 632.— Kendrick et al. 2024: 5, 6, 7.
Procambarus (Ortmannicus) chacei.— Hobbs, 1972 a:9; 1974b:55, fig. 219.
Procambarus (Ortmannicus) enoplosternum.— Hobbs, 1981:388 (in part).
Procambarus braswelli Cooper 1998.— Fullerton and Watson 2001: 66, 69.— Cooper 2002: 167, 177, 178.— McLaughlin et al. 2005: 232, 293.— Taylor et al. 2007: 385.— Cooper 2010: 73,74, 75— Simon 2011: 84.— Fetzner 2015: 9, 14.— Thoma 2015: 369.— Crandall & De Grave 2017: 632.— Kendrick et al. 2024: 1, 5, 6, 7, 9.
Procambarus lepidodactylus.— Hobbs 1958a:72 (in part), 75, 76.— Hobbs 1962:284 (in part).—Hobbs 1968:K9 (in part).— Hobbs 1972:151 (in part).— LeGrand & Hall 1997:32 (in part).
Procambarus (Ortmannicus) lepidodactylus.— Cooper & Cooper 1977a:198, 200 (by implication); 1977b:206, 207 (in part).— Hobbs 1972:61; 1974:57; 1989:68 (in part).— Hobbs & Peters 1977:8 (in part).— Hobbs et al. 1977:19 (in part).— Teulings & Cooper 1977:415 (in part).—Fitzpatrick 1983:214 (in part).— Hobbs & Franz 1986:516 (in part).— Hobbs 1989:86 (in part).
Procambarus leptodactylus.—Williams et al. 1989:26, 64 (by implication, erroneous spelling).— LeGrand 1993:23 (erroneous spelling).— LeGrand & Hall 1995:31 (in part, erroneous spelling).
Procambarus sp. A — Hobbs, 1958b:72, 76, 77, 79, 83, 86, 90.
“Undescribed species”.— Cooper & Braswell 1995:120.
Type locality.— Cedar Creek, 3 miles east of Lykes, Richland County, SC, on U.S. Highway 76 (Hobbs 1958a).
Type specimens.— Holotype USNM 101289, from the type locality, E.H. Bello, H.H. Hobbs, Jr., 18 April 1955 | Allotype USNM 101290, same as holotype | Morphotype USNM 101291, same as holotype | Paratype USNM 116713, Sandy Bar, Richland County, SC, Crawford, 18 February 1955 | Paratype USNM 116714, Toms Creek, Richland County, SC, H.W. Freeman, 13 July 1953 | Paratype USNM 116715, same as holotype | Paratype USNM 116716, Crane Creek, Richland County, SC, Crawford, 26 November 1954 | Paratype USNM 116717, Spears Creek, Richland County, SC, Crawford, Stewart, 19 February 1955 | Paratype USNM 116718, Sandy Run Creek, Lexington County, SC, Freeman, 17 January 1953 | Paratype USNM 116719, 7 Mile SE Columbia, Richland County, SC, E.H. Bello, H.H. Hobbs, Jr., 18 April 1955 | Paratype USNM 116720, 2.5 Mile Creek, Richland County, SC, H.W. Freeman, 25 October 1954 | Paratype USNM 116721, Sandy Run Creek, Calhoun County, E.H. Bello, H.H. Hobbs, Jr., 20 April 1955 | Paratype USNM 116722, Toms Creek, Richland County, SC, E.H. Bellow, 18 April 1955 | Paratype USNM 116723, Colonels Creek, Richland County, SC, H.W. Freeman, 16 October 1955 | Paratype USNM 116724, Halfway Swamp Creek, Calhoun County, SC, H.W. Freeman, 16 April 1955 | Paratype USNM 116753, Mill Creek, Richland County, Crawford, 26 March 1955 | Paratype USNM 116754, Warlsy Creek, Calhoun County, SC, H.W. Freeman, 21 February, 1955 | Paratype USNM 116755, Cedar Creek, Richland County, SC, H.W. Freeman, 6 June 1953 | Paratype USNM 116756, Halfway Swamp Creek, Richland County, SC, H.W. Freeman, 21 February 1955 | Paratype USNM 116757, 18 miles SE Columbia, Richland County, SC, Bobb, 29 July 1948 | Rice Creek, Richland County, SC, Crawford, 30 December 1954 | MCZ CRU-12881, Colonels Creek, Richland County, SC, H.W. Freeman, 16 October 1955 | Additional paratypes deposited at the Academy of Natural Sciences of Philadelphia (cat. no. unknown), Instituto de Biologia (University of Mexico; UNAM; cat. no. unknown), and the Tulane Zoological Collection (cat. no. unknown), which has presumably since been given to the USNM.
Distribution.—Waccamaw River and Lumber-Little Pee Dee drainages in southeastern North Carolina and South Carolina, south and west across the coastal plain of the Santee, Edisto, and Savannah basins. Note: The southern limit of the species is in need of further investigation and may extend into Georgia.
Common name: Cedar Creek Crayfish
Emended diagnosis: Body pigmented, eyes well developed. Acumen distinct; strong postorbital ridge, strong marginal spines, strong postorbital ridge spine; lacks median carina. One strong cervical spine on each side of carapace. Suborbital angle obtuse to obsolete. Areola 2.7 (+-0.04) times longer than wide, with 6-9 punctations across narrowest section. Antennal scale 2.7 (SE +- 0.04) times longer than wide. Palm of chela of cheliped 1.3 (+- 0.02) times wider than deep, and 1.7 (+-0.03) times longer than wide. Fingers without gape, without dense setae at opposable bases. Mesial margin of palm with or without serrate tubercles. Hooks on ischia of third and fourth pereiopods of male. First pleopods of first form male asymmetrical with rounded hump on cephalic surface. Mesial process subspiculiform and directed distally; caudal process short and subspiculiform; adventitious process knoblike prominence lateral to caudal process, often with constriction in middle, central projection sclerotized with half-pyramid shape directed caudodistally; cephalic process hood-like and relatively short but with acute apex and as long as, or longer, than central projection. Annulus ventralis symmetrical, subovate. Annulus ventralis wider than long with submedian longitudinal elevation bearing sinuous sinus, being either sinistral or dextral. Sternum cephalic to annulus ventralis with pair of caudally-projecting prominences, which themselves may be simple or bituberculate.
description: Published as part of Kendrick, Michael R. & Williams, Bronwyn W., 2025, An integrative taxonomic assessment leads to the synonymy of the Waccamaw Crayfish Procambarus braswelli Cooper 1998 with the Cedar Creek Crayfish Procambarus chacei Hobbs 1958 (Decapoda: Cambaridae), pp. 251-266 in Zootaxa 5575 (2) on page 256, DOI: 10.11646/zootaxa.5575.2.2, http://zenodo.org/record/14746821