_Specimens examined._--Total 97, as follows: TEXAS: _Bandera_: KU 50834, Hondo Creek, 4 mi. W Bandera; TNHC 797-98, 7 mi. SW Medina. _Bexar_: ANSP 13447, Helotes; MCZ 4587; USNM 10789, 71009, San Antonio. _Borden_: BCB 4066, 7 mi. N Vincent. _Brown_: TNHC 7262, 1 mi. E Brownwood. _Comal_: USNM 7700, New Braunfels. _Dawson_: TNHC 21594-95, 10 mi. E Lamesa. _Frio_: USNM 7747, Río Seco. _Gillespie_: TU 10185, 10187, 10205, Beaver Creek, "near" Doss. _Hays_: AMNH 29950-52, San Marcos. _Kerr_: SM 2553, headwaters Turtle Creek; TU 10142-45, 10147-65, 10176, 10833, Guadalupe River, 9 mi. SE Kerrville. _Kimble_: BCB 5052-55, 6010, 3 mi. SE Telegraph; TU 14476, South Fork Llano River, 1.5 mi. SE Telegraph; TU 14485, Llano River, 10 mi. W Junction. _Lavaca_: SM 2554-55, 2559, 3 mi. NNE Hope. _Llano_: TNHC 12352, TU 16036 (2), Llano River, 2 mi. W Llano. _McMullen_: TNHC 1446, 10 mi. W Simmons, Live Oak County; UMMZ 89915-27, 15 mi. NE Tilden. _Matagorda_: ANSP 11889, Matagorda. _San Saba_: SM 6106; TU 14419 (6), 14439-40, San Saba River, 11 mi. NNW San Saba. _Tom Green_: SM 3282, UMMZ 70348, USNM 83690, South Concho River at Christoval. _Travis_: SM 659-60, 8.5 mi. from mouth of Onion Creek in Colorado River near Austin; SM 4924, Onion Creek; TNHC 4975, Upper Bull Creek; TNHC 20257, Marshall Ford Dam. _Victoria_: CM 3118, Black Bayou; UMMZ 92752, San Antonio River, 3 mi. WSW Goliad; USNM 78515-17, Colleto Creek, Guadalupe River. _County unknown_: ANSP 16717; TNHC 1404. _Records in the literature._--TEXAS: _Bandera_: 24 mi. WNW Medina (Brown, 1950:250). _Burnet_: Colorado River (Strecker, 1909:8). _Gillespie_: 20 mi. N Harper (Brown, _loc. cit._). _Kendall_: Cibolo Creek at Boerne (Strecker, 1926:8). _Kerr_: Guadalupe River, 3 mi. above Kerrville (TCWC 474, listed in card file). _Mason_: 12 mi. NE Mason (TCWC 3303, listed in card file). _Matagorda_: Bay City (Brown, _loc. cit._). _Real_: (Stejneger, 1944:66). _Wilson_: Cibolo River, 30 or 40 mi. N Sutherland Springs (Strecker, 1935:23). =Trionyx spinifer pallidus= new subspecies Pallid Spiny Softshell Plates 39 and 40 _Holotype._--TU 484, alcoholic adult male; obtained from Lake Caddo, Caddo Parish, Louisiana on June 27, 1947, by Fred R. Cagle and party (Pl. 39, lower, left).