Lepidobatrachus laevis Budgett, 1899, Q. J. Microsc. Sci., 42: 329. Holotype: Not stated; given as BMNH 1919.4.23.2, by XXX. Type locality: "Paraguayan Chaco".
Ceratophrys laevis — Boulenger, 1919, Ann. Mag. Nat. Hist., Ser. 9, 3: 533.
Ceratophrys (Lepidobatrachus) laevis — Parker, 1931, J. Linn. Soc. London, Zool., 37: 287. Use of parentheses to indicate that he thought Boulenger's synonymy of the generic names would be overturned, not subgeneric usage (DRF).
Lepidobatrachus laevis — Barrio, 1968, Physis, Buenos Aires, 27: 445.
Budgett's Frog (Cochran, 1961, Living Amph. World: 92; Ananjeva, Borkin, Darevsky, and Orlov, 1988, Dict. Amph. Rept. Five Languages: 88; Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 81).
Northern and eastern areas of Chacoan environments, Argentina (provinces of Chaco, Santa Fe, Salta, and Formosa), Bolivia (departments of Santa Cruz and Tarija), and Paraguay (departments of Presidente Hayes, Boquerón, and Alto Paraguay).
Last revised by Barrio, 1968, Physis, Buenos Aires, 27: 445-454, and Barrio, 1968, Physis, Buenos Aires, 28: 95-106. Brusquetti and Lavilla, 2006, Cuad. Herpetol., 20: 16, briefly discussed the range in Paraguay.
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