Melanophryniscus pachyrhynus Miranda-Ribeiro, 1920



Taxonomy & Nomenclature



Conservation Status

Last record: 1905

Rediscovered in 2005

IUCN RedList status: Data Deficient



Brazil & Uruguay


Biology & Ecology










Original scientific description:

Miranda-Ribeiro, A. (1920). Os brachycephalideos do Museu Paulista (com três espécies novas). Revista do Museu Paulista 12: 307-316.


Other references:

Caldart, Vinícius Matheus et al. (2013). The advertisement and release calls of Melanophryniscus pachyrhynus (Miranda-Ribeiro, 1920) from the central region of Rio Grande do Sul, southern Brazil. Acta Herpetologica 8(2): 115-122. [automatic download]

Paulo Garcia, Magno Vicente Segalla. (2004). Melanophryniscus pachyrhynus. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. ( Downloaded on 08 May 2014.

Martin, Thomas E., Bennett, Gareth C., Fairbairn, Andrew J. and Mooers, A. Ø. (2023). ‘Lost’ taxa and their conservation implications. Animal Conservation 26(1): 14-24. [Appendix S2 (1617 taxa not seen >10 years); Appendix S3 (562 taxa not seen >50 years)]

Santos, T.G., Maneyro, R., Cechin, S.Z., Haddad, C.F.B. (2011). Breeding habitat and natural history notes of the toad Melanophryniscus pachyrhynus (Miranda-Ribeiro, 1920) (Anura: Bufonidae) in Southern Brazil. Herpetol. Bull. 116: 15-18.

Scheffers, Brett R., Yong, Ding Li, Harris, J. Berton C., Giam, Xingli and Sodhi, Navjot S. (2011). The world’s rediscovered species: back from the brink? PLoS ONE 6(7): e22531. [Supporting Information (Table S1)]

Vaz-Silva, Wilian et al. (2008). Rediscovery of Melanophryniscus pachyrhynus (Miranda-Ribeiro, 1920) (Amphibia: Anura: Bufonidae) in southern Brazil, with addenda to species redescription. South American Journal of Herpetology 3(1): 36-42. [Abstract]


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