North Carolina Crayfishes 119 



Yadkin-Pee Dee River — The headwaters of the Yadkin-Pee 

 Dee basin rise in the eastern Blue Ridge of Virginia, in western 

 Surry, Wilkes, and southeastern Watauga counties, North Carolina, 

 and in the western Piedmont in southwestern Stokes and western 

 Forsyth counties, North Carolina. The main trunk of the Yadkin River 

 begins in Watauga County east of Blowing Rock, flows southeast to 

 northcentral Caldwell County, then makes an abrupt turn and flows 

 northeast to the juncture of Surry, Stokes, Yadkin, and Forsyth 

 counties. There it turns south and, at the Stanly-Montgomery county 

 line southeast of Badin Lake, joins the Uwharrie River, a major eastern 

 tributary that rises in northwestern Randolph County. This merger 

 forms the Pee Dee River. A major western tributary, the Rocky River, 

 heads in southern Iredell and northern Mecklenburg counties, flows 

 east, and joins the Pee Dee at the Anson County line below Lake 

 Tillery. Several creeks that drain southcentral Union County flow 

 south directly into the Lynches River, South Carolina, a major 

 western trunk of the Pee Dee River. Southeastern tributaries of the 

 Pee Dee drain southern Anson and Richmond counties, flowing 

 directly into South Carolina to join the Pee Dee River in Chesterfield 

 County. The Pee Dee flows across northern South Carolina and 

 merges with the Little Pee Dee River at the tip of Britton Neck. The 

 Pee Dee then continues into Winyah Bay. 



In the uppermost sections of the Yadkin-Pee Dee basin occur 

 C. asperimanus, C. longulus, and C. dubius. The southern limits of 

 their distributions are unknown, but all three appear to be restricted 

 to higher elevations within this basin. Specimens tentatively 

 identified as C. b. bartonii have also been collected in the upper 

 reaches of this basin. Cambarus reduncus occurs in the Piedmont, 

 and C. sp. C apparently occurs throughout. Hobbs and Peters (1977: 

 18) reported C. sp. A from Mongtomery County, collected with C. sp. 

 C and P. a. acutus, inadvertently placing the locality ("creek, 4.6 

 mi . . . W Mt Gilead on SR 73") in the Catawba River basin. Holt 

 and Weigl (1979:24) described the ectocommensal branchiobdellid, 

 Xironodrilus bashaviae, from several creeks in Forsyth County, includ- 

 ing "Bashavia" (Barshavia = Bechewa) Creek, with C. b. bartonii its 

 host. This crayfish could turn out to be C. sp. A. Procambarus a. 

 acutus has been collected in Anson, Cabarrus, Davidson, Montgomery, 

 and Union counties. Fallicambarus fodiens and C. diogenes may occur 

 in that part of the basin draining the southeastern Piedmont and 

 Sandhills. 



Lumber River — To the west this Coastal Plain system heads in 

 the Sandhills of southern Moore, eastern Montgomery, and Richmond, 



