Nebraska: Webster: UMMZ 89526, Republican River, 2 mi. E Inavale.
Oklahoma: Cleveland: OU 5480-81, 6473, South Canadian River, 4 mi. SE Norman. Hughes: KU 50845, 4 mi. N Atwood. Kay: OU 9741, 8 mi. E Ponca City. Le Flore: OU 2148; OU 27390, Poteau River below Wister Dam. Love: OU 27472, Hickory Creek, 9 mi. E Marietta. Major: OU 8597, 7 mi. E Orienta. Marshall: KU 50827-29, 50848, 50853, OU 27593-94, TU 16077 (4), Lake Texoma, 2 mi. E Willis. McIntosh: OU 8993, 4 mi. W Onapa. Oklahoma: OU 10137, Lake Oberholser. Payne: UMMZ 89629, Cimarron River, 3 mi. E Ripley; UMMZ 90002, 19 mi. SE Stillwater. Pottawatomie: OU 25176-83, South Canadian River, 5 mi. SW Shawnee. Roger Mills: OU 12472. Sequoyah: OU 9006, Illinois River, 2 mi. NE Gore. Tulsa: UMMZ 95032 (4), Arkansas River at Tulsa. Woodward: CNHM 15472-73; OU 8599-600, 5 mi. E, 1 mi. N Woodward.
South Dakota: Yankton: UMMZ 110499-500, Missouri River at Fort Randall; UMMZ 110501-02, Missouri River at Yankton.
Tennessee: Benton: UMMZ 53198, Trotter's Landing. Lake: USNM 102677, Reelfoot Lake. Obion: USNM 102910, Reelfoot Lake.
Texas: Archer: TU 16173, Lake Diversion. Baylor: TU 16172 (2), Lake Kemp. Brazos: TCWC 7250, Bryan. Clay: TCWC 7248-49, 7259-61, 8 mi. NW Ringgold, Montague County; TU 16667, 3 mi. W Byers. Grayson: UI 2419, Lake Texoma. Gregg: SM 6685, near Gladewater; USNM 22629, Sabine River, 5 mi. S Longview. Liberty: TU 14416, 14375, Trinity River, "near" jct. with Big Creek. McLennan: BCB 6030, 6043, SM 2557, 2561, Lake Waco. Matagorda: CM 3055, Colorado River, Bay City. San Saba: TU 14436, San Saba River, 11 mi. NNW San Saba. Tarrant: UMMZ 92750, Worth Lake, Fort Worth. Wharton: UMMZ 92751, Colorado River, Wharton.
No Data: MCZ 1594 (erroneously recorded from Mobile, Alabama); USNM 029261, 59982.
Records in the literature.—Arkansas: Garland: Hot Springs (Combs and Hurter in Strecker, 1924:47). Jefferson: Pine Bluff. Pulaski: Little Rock. Sebastian: Fort Smith (Hurter and Strecker, 1909:21).
Illinois: Adams: Quincy (Garman in Cahn, 1937:179). Alexander: Horseshoe Lake (Cahn, loc. cit.); Cairo (Garman in Cahn, loc. cit.). Carroll: 5 mi. S Savanna (Stejneger, 1944:24). Clay: Louisville. Clinton: Carlyle. Crawford: Robinson (Cahn, loc. cit.). Cumberland: Embarrass River (Peters, 1942:183). Fayette: Vandalia. Gallatin: Shawneetown (Cahn, loc. cit.). Hancock: between Warsaw and Hamilton (Stejneger, op. cit.:23). Jackson: Murphysboro. Jasper: Newton. Marion: Centralia. Mason: Havana. Massac: symbol on map. Menard: Petersburg. Peoria: Peoria. Randolph: Chester (Cahn, loc. cit.). Richland: Olney (Stejneger, loc. cit.). Rock Island: Rock Island. St. Clair: East St. Louis (Cahn, loc. cit.). Union: (Cagle, 1942a:199). White: Carmi. Whiteside: Sterling (Cahn, loc. cit.). Woodford: Mackinaw Creek (Garman in Cahn, loc. cit.).
Indiana: Carroll: "near" Delphi (Agassiz, 1857:400). Vigo: Terre Haute (Blatchley, 1891:22).
Iowa: Des Moines: "near" Burlington (Agassiz, 1857:400). Dubuque: Mississippi River, 8 mi. S Dubuque (Goldsmith, 1945:447). Lee: Keokuk (Stejneger, 1944:23).