Strecker and Williams (1927:16) mentioned one specimen of _muticus_ that was obtained at Christoval, Tom Green County, Texas, and I presume this is the basis for Pope's mention of this species from Tom Green County, Texas (1949:319). Although I do not doubt that _T. muticus_ occurs in Tom Green County, this record possibly is based on _T. spinifer_ because, 1) there are no specimens of _muticus_ in the Strecker Museum from Tom Green County, but there is one specimen of _spinifer_ (SM 3282), and in none of Strecker's publications is there any mention of _spinifer_ from Tom Green County, and 2) Strecker had, at least once, misidentified the two species; his record of _muticus_ from Wallace Bayou, Louisiana (Strecker and Frierson, 1926:last page, no numbers), represents _T. spinifer pallidus_ (SM 2374-75). _Specimens examined._--Total 261, as follows: ALABAMA: _County unknown_: USNM 118167, Wheeler Reservoir, Tennessee River. ARKANSAS: _Franklin_: KU 19459-60, Ozark. _Lafayette_: KU 2938, 3057, Lewisville. _Lawrence_: CNHM 92003, Imboden; CNHM 92005, Powhatan; USNM 59214, Black River, Black Rock. _Marion_: TU 14606 (2), White River at Cotter. _Prairie_: KU 1831, 1868, 1870, 1874-76, 1930-31, 1957-63, 2294-302, 2305-06, 2308-09, 2838-41, 3002, White River, DeVall's Bluff. KANSAS: _Barber_: USNM 95185-86, 1 mi. S Lake City. _Doniphan_: KU 1872, 1878, 1964, Doniphan Lake. _Douglas_: KU 2220, 16148, 23230, 40179, 50825-26, 55296-306, Kansas River, Lawrence; KU 45065-66, 1 mi. N, 1.5 mi. W Lakeview. _Ford_: KU 51516, Ford. _Kearny_: KU 48216, 4 mi. S, 1.5 mi. W Deerfield. _Marshall_: KU 48228, Blue Rapids. _Pottawatomie_: KU 48229-33, 48238, 2 mi. E Manhattan, Riley County. _Reno_: USNM 95260, 6 mi. E Turon. _Riley_: KU 46861, 48234-35, 4 mi. N Manhattan; KU 48236, 2 mi. NE Randolph. _Sedgwick_: UMMZ 95362, Wichita. _Shawnee_: UMMZ 95366-67, Topeka. _Sumner_: USNM 95415, 3 mi. SE Oxford. _Washington_: KU 48237, 8 mi. S Hanover. _Woodson_: KU 45064, 1 mi. E, 2 mi. S Neosho Falls. _County unknown_: USNM 51528. ILLINOIS: _Cass_: INHS 2146, Beardstown. _Coles_: INHS 1965-67, 3 mi. S Charleston. _Jackson_: INHS 5894, 6.5 mi. N Aldridge, Union County; UMMZ 81570, Mississippi River. _Jasper_: INHS 2412, Rose Hill. _Jersey_: INHS 2156-58, Grafton. _Mason_: INHS 2147, Cedar Creek. _Mercer_: INHS 3458, Keithsburg. _Monroe_: INHS 4088, 3 mi. NE Columbia. _Morgan_: CNHM 6028, INHS 2148, Meredosia. _Pope_: CNHM 2463 (30), Golconda. _Schuyler_: UI 40-41, Crooked Creek. _Shelby_: INHS 2283, Holliday. _Wabash_: INHS 5228, Mt. Carmel. INDIANA: _Daviess_: UMMZ 110234, White River, 1.5 mi. W Elnora. _Jefferson_: USNM 8337, Madison. _Knox_: UMMZ 111880-81, "near" Decker Chapel. _Posey_: INHS 7278-80, 7447, TTC 798, Wabash River, 2-2.5 mi. S New Harmony; UMMZ 110598, 8 mi. NW Mt. Vernon.