MISSISSIPPI: _Chickasaw_: USNM 115981, Chookatonkchie Creek. _Clarke_: USNM 79350-51, 1 mi. W Melvin, Choctaw County, Alabama; USNM 100805, Enterprise. _Forrest_: WEB 55-586, 1 mi. S Hattiesburg. _Hancock_: AMNH 46780; WEB 54-651, Hickory Creek "near" Kiln. _Lauderdale_: UMMZ 74681, 9 mi. W Meridian; UMMZ 90130, Lake Juanita, 15 mi. W Meridian. _Lawrence_: KU 47120, TU 17307.1, Pearl River, 9 mi. S Monticello; USNM 7653-54, Pearl River at Monticello. _Lee_: CM 31904, Verona; USNM 115979, Cower's Area near Guntown. _Madison_: USNM 95191, 95193-94, Pearl River. _Marion_: MCZ 1597, Pearl River at Columbus (designated type locality). _Pearl River_: CM 21100, Pearl River, 20 mi. W Poplarville; TU 14362, Hobolochito Creek, 1 mi. N Picayune. _Perry_: WEB 55-580, Beaver Dam Creek, 1 mi. N Richton. _Walthall_: KU 50844, Bogue Chitto River, Dillon. SOUTH CAROLINA: _Abbeville_: USNM 7650, Abbeville? (reported by Pickens, 1927:113; locality considered in error by Stejneger, 1944:50; USNM 7650 having only one dark marginal line paralleling rear margin of carapace is possibly an aberrant specimen--see page 495 of present account). _Greenwood_: USNM 71681, 73668, Greenwood. _McCormick_: USNM 91310-12, Savannah River, 5 mi. W Plum Branch; USNM 92521, near Parksville. _Richland_: AMNH 70724-25, Broad River, Columbia. NO DATA: USNM 8359 (erroneously reported from Madison, Indiana by Yarrow, 1882:29 and Hay, 1892:145; see discussion by Cahn, 1937:200, and Stejneger, 1944:73-75); USNM 131859. _Records in the literature._--ALABAMA: _Coffee_: Elba (KKA). _Marengo_: Tombigbee River near Demopolis. _Mobile_: Fig Island (Löding, 1922:47). FLORIDA: _Jackson_: Chattahoochee River, 8 mi. SE Butler. _Leon_: Ochlocknee River, NW of Tallahassee (Goin, 1948:304). GEORGIA: _Bartow_: Etowah River below Allatoona Dam, _ca._ 4 mi. ESE Cartersville (Crenshaw and Hopkins, 1955:15). _Berrien_: (Knepton, 1956:324). _Emanuel_: Ogeeche River (Schwartz, 1956:19). _Fulton_: Nancy Creek, Atlanta (Dunston, 1960:278). _Gwinnett_: _Irwin_: (Knepton, _loc. cit._). _Jenkins_: Ogeeche River near Buckland Creek jct., 2.5 mi. S Millen. _Liberty_: Camp Stewart, 4 mi. N Hinesville. _Morgan_: Lake Rutledge (Schwartz, _loc. cit._). _Muscogee_: Columbus (Stejneger, 1944:52). _Wayne_: Altamaha River, 5 mi. N Mt. Pleasant (Schwartz, _loc. cit._). _Wilcox_: Ocmulgee River, 3-4 mi. SSE Abbeville (Crenshaw and Hopkins, _op cit._:16, footnote; Schwartz, _loc. cit._). MISSISSIPPI: _George_: Whiskey Creek (Cook, 1946:185). _Harrison_: near Biloxi. _Jackson_: Pascagoula Swamp, _ca._ 40 mi. E. Biloxi (Corrington, 1927:101). _Jones_: Eastabuchie. _Lee_: Cain Creek Bottom. _Lincoln_: Old Brook Creek. _Lowndes_: Tombigbee River, Camp Henry Pratt and Columbus; Lake Park, Columbus. _Pearl River_: 21 mi. SW Poplarville; 10 mi. W Poplarville; 4 mi. W Poplarville. _Wayne_: Trigg Area (Cook, _loc. cit._). NORTH CAROLINA: _Mecklenburg_: Catawba River near Charlotte (Schwartz, 1956:20).