Scaphiopus intermontanus Cope, 1883, Proc. Acad. Nat. Sci. Philadelphia, 35: 15. Syntypes: ANSP 13787 (Salt Lake City), 13788-89 + 2 (Pyramid Lake) lost, according to Malnate, 1971, Proc. Acad. Nat. Sci. Philadelphia, 123: 351. Type locality: "Salt Lake City", Salt Lake County, Utah, USA, and "Pyramid Lake, [Storey County,] Nevada", USA; restricted to "Salt Lake City", Salt Lake County, Utah, USA, by Schmidt, 1953, Check List N. Am. Amph. Rept., Ed. 6: 59.
Spea hammondii intermontana — Cope, 1889, Bull. U.S. Natl. Mus., 34: 304. Tanner, 1989, Great Basin Nat., 49: 56 .
Scaphiopus intermontanus — Tanner, 1939, Great Basin Nat., 1: 13.
Scaphiopus (Spea) intermontanus — Tanner, 1939, Great Basin Nat., 1: 12. Dubois, 1987 "1986", Alytes, 5: 130.
Scaphiopus hammondi intermontanus — Schmidt, 1953, Check List N. Am. Amph. Rept., Ed. 6: 59. Tanner, 1989, Great Basin Nat., 49: 38.
Spea intermontana — Wiens and Titus, 1991, Herpetologica, 47: 21-28.
Great Basin Spadefoot (Schmidt, 1953, Check List N. Am. Amph. Rept., Ed. 6: 59; Conant, Cagle, Goin, Lowe, Neill, Netting, Schmidt, Shaw, Stebbins, and Bogert, 1956, Copeia, 1956: 177; Stebbins, 1966, Field Guide W. North Am. Rept. Amph.: 57; Collins, Huheey, Knight, and Smith, 1978, Herpetol. Circ., 7: 13; Collins, 1997, Herpetol. Circ., 25: 14; Crother, Boundy, Campbell, de Queiroz, Frost, Highton, Iverson, Meylan, Reeder, Seidel, Sites, Taggart, Tilley, and Wake, 2001 "2000", Herpetol. Circ., 29: 17; Stebbins, 2003, Field Guide W. Rept. Amph., Ed. 3: 204; Frost, McDiarmid, and Mendelson, 2008, in Crother (ed.), Herpetol. Circ., 37: 12; Collins and Taggart, 2009, Standard Common Curr. Sci. Names N. Am. Amph. Turtles Rept. Crocodil., ed. 6: 9; Frost, McDiarmid, Mendelson, and Green, 2012, in Crother (ed.), Herpetol. Circ., 39: 22).
Great Basin Spadefoot Toad (Tanner, 1939, Great Basin Nat., 1: 12; Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 96).
Great Basin of western North America, north to southern Idaho (USA) and British Columbia (Canada) south to eastern California, northern Arizona, and northeastern New Mexico east to western Colorado and southwestern Wyoming (USA).
According to Wiens and Titus, 1991, Herpetologica, 47: 21-29, this nominal species may be a paraphyletic composite of two species. Reviewed by Hall, 1998, Cat. Am. Amph. Rept., 650: 1-2. Stebbins, 2003, Field Guide W. Rept. Amph., Ed. 3: 204, provided a brief account, figure, and map.
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