Melanophryniscus tumifrons (Boulenger, 1905)

Class: Amphibia > Order: Anura > Family: Bufonidae > Genus: Melanophryniscus > Species: Melanophryniscus tumifrons

Atelopus tumifrons Boulenger, 1905, Ann. Mag. Nat. Hist., Ser. 7, 16: 181. Holotype: BMNH 1947.2.1461 (formerly 1902.12.8.5), according to Hoogmoed, 1985, in Frost (ed.), Amph. Species World: 69; and Caramaschi and Cruz, 2002, Arq. Mus. Nac., Rio de Janeiro, 60: 306. Type locality: "Pernambuco", Brazil; Bokermann, 1966, Lista Anot. Local. Tipo Anf. Brasil.: 15, doubted the type locality and supposed the type came from "Rio Grande do Sul", Brazil; this reassignment of type locality supported by Caramaschi and Cruz, 2002, Arq. Mus. Nac., Rio de Janeiro, 60: 308.

Dendrophryniscus tumifronsMüller, 1934, Zool. Anz., 108: 153.

Melanophryniscus tumifronsGallardo, 1961, 1° Reunion Trab. Comun. Cienc. Nat. Geograf., Univ. Nac. Litoral, Santa Fe, Argentina: 210.

English Names

Swelling Redbelly Toad (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 44).


Rio Grando do Sul and Paraná, Brazil.

Geographic Occurrence

Natural Resident: Brazil

Endemic: Brazil


In the Melanophryniscus tumifrons group of Cruz and Caramaschi, 2003, Bol. Mus. Nac., Rio de Janeiro, N.S., Zool., 500: 1-11. See account by Caramaschi and Cruz, 2002, Arq. Mus. Nac., Rio de Janeiro, 60: 303-314, where species limits were redefined. Populations in Argentina formerly assigned to this species are now assigned to Melanophryniscus krauczuki. Zank, Becker, Abadie, Baldo, and Maneyro, 2014, PLoS One, E 9(4: e94625): 1–11, provided modeled distribution maps for the species under climate change. Reports of Melanophryniscus tumifrons from the municipalities of Campo Bom, Gravataí, Novo Hamburgo, Parobé, Santo Antônio da Patrulha and São Leopoldo, Rio Grande do Sul, Brazil, may be of ant unnamed species of Melanophryniscus (Baldo et al. 2014Baldo, Vera Candioti, Haad, Kolenc, Borteiro, Pereyra, Zank, Colombo, Bornschein, Sisa, Brusquetti, Conte, Nogueira-Costa, Almeida-Santos, and Pie, 2014, Biol. J. Linn. Soc., 112., and Moser, Farina, Borges-Martins, Machado, Colombo, and Tozetti, 2021, Neotrop. Biol. Conserv., 16: 443. 

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