Bufo rufus Garman, 1877 "1876", Proc. Boston Soc. Nat. Hist., 18: 413. Syntypes: MCZ 367-68 (2 specimens), according to Barbour and Loveridge, 1929, Bull. Mus. Comp. Zool., 69: 233. Type locality: "near Goyaz [= city of Goiás], on the highlands of east Brazil" (actually in central Brazil). Primary homonym of Bufo rufus Schneider, 1799 (= Anaxyrus terrestris) according to Lavilla, 1994 "1992", Acta Zool. Lilloana, 42: 66.
Bufo rubescens Lutz, 1925, C. R. Mém. Hebd. Séances Soc. Biol. Filial., Paris, 93 (1925, vol. 2): 214. Syntypes: Not stated, but USNM 97236-37 according to Cochran, 1961, Bull. U.S. Natl. Mus., 220: 37. Type locality: "Bello Horizonte", Minas Gerais, Brazil. Synonymy (under Bufo rufus) by Cochran, 1961, Bull. U.S. Natl. Mus., 220: 37; Gorham, 1974, Checklist World Amph.: 84; and Cei, 1980, Monit. Zool. Ital., N.S., Monogr., 2: 178.
Bufo rufescens — Brazil and Vellard, 1926, Mem. Inst. Butantan, São Paulo, 3: 23. Incorrect subsequent spelling.
Chaunus rubescens — Frost, Grant, Faivovich, Bain, Haas, Haddad, de Sá, Channing, Wilkinson, Donnellan, Raxworthy, Campbell, Blotto, Moler, Drewes, Nussbaum, Lynch, Green, and Wheeler, 2006, Bull. Am. Mus. Nat. Hist., 297: 364. Savage and Bolaños, 2009, Zootaxa, 2005: 4. By implication.
Rhinella rubescens — Chaparro, Pramuk, and Gluesenkamp, 2007, Herpetologica, 63: 211. by implication.
Rusty Toad (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 43).
Rufous Toad (Eterovick and Sazima, 2004, Anf. Serra do Cipó: 33).
Cerrado of central Brazil (Mato Grosso do Sul, Goiás, Minas Gerais, Pará, Piaui, and São Paulo).
In the Bufo marinus group of Martin, 1972, in Blair (ed.), Evol. Genus Bufo: 57, and Blair, 1972, in Blair (ed.), Evol. Genus Bufo: 96, but in the Bufo arenarum group of Cei, 1980, Monit. Zool. Ital., N.S., Monogr., 2: 173-178. Lavilla, 1994 "1992", Acta Zool. Lilloana, 42: 66, noted that Bufo rufus Garman is a primary homonym of Bufo rufus Schneider, 1799 (= Bufo terrestris). Removed from the synonymy of Rhinella missionum by Faivovich and Carrizo, 1997, Cuad. Herpetol., 11: 81-82, where it had been placed by Gallardo, 1961, Neotropica, 7: 33-38. Eterovick and Sazima, 1999, J. Herpetol., 33: 711-713, noted the similarity of this species with Rhinella arenarum. See remarks by Lavilla and Cei, 2001, Monogr. Mus. Reg. Sci. Nat. Torino, 28: 27, regarding the nomenclature of the species. Araújo, Condez, and Haddad, 2007, Check List, 3: 153-155, provided the first record for the state of São Paulo, Brazil. Canelas and Bertoluci, 2007, Iheringia, Zool., 97: 21-26, provided a locality in Minas Gerais. Kwet, Di-Bernardo, and Maneyro, 2006, Iheringia, Zool., 96: 479-485, provided a key to distinguish this species from other members of the Rhinella marina group. Eterovick and Sazima, 2004, Anf. Serra do Cipó: 33-34, provided a photograph and brief account. Vallinoto, Sequeira, Sodré, Bernardi, Sampaio, and Schneider, 2010, Zool. Scripta, 39: 128-140, and Maciel, Garcia, Colli, and Schwartz, 2010, Mol. Phylogenet. Evol., 57: 787-797, reported on the molecular phylogenetics of the Rhinella marina group, including this species. Cruz, Feio, and Caramaschi, 2009, Anf. Ibitipoca: 62-63, provided photographs and a brief account for Parque Estadual do Ibitipoca, Minas Gerais, Brazil. Aoki, Landgref, Oda, and Gamarra, 2011, Herpetol. Rev., 42: 108, provided a record for Mato Grosso do Sul, Brazil, and commented on the range.
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