Synonymy

• Sphaenorhinchus — Duméril & Bibron, 1841
• Dryomelictes Fitzinger, 1843
• Dryomelictes Cope, 1865
• Hylopsis Werner, 1894
• Sphoenorhynchus — Lutz & Lutz, 1938
• Sphoenohyla Lutz & Lutz, 1938
• Sphaenorhynchus — Goin, 1957

Primary references

• Tschudi, J.J. 1838. Classification der Batrachier mit Berücksichtigung der fossilen Thiere dieser Abtheilung der Reptilien. Petitpierre: Neuchâtel. BHL

Additional references

• Toledo, L.F., Garcia, P.C.A., Lingnau, R. & Haddad, C.F.B. 2007 A new species of Sphaenorhynchus (Anura; Hylidae) from Brazil. Zootaxa 1658(1): 57–68. DOI: 10.11646/zootaxa.1658.1.4 Reference page. 

• Caramaschi, U., Almeida, A.P. & Gasparini, J.L. 2009. Description of two new species of Sphaenorhynchus (Anura, Hylidae) from the state of Espírito Santo, southeastern Brazil. Zootaxa 2115(1): 34–46. DOI: 10.11646/zootaxa.2115.1.3 Reference page. 

• Araujo-Vieira, K., Lacerda, J.V.A., Pezzuti, T.L., Leite, F.S.F., Assis, C.L. de & Cruz, C.A.G. 2015. A new species of Hatchet-faced Treefrog Sphaenorhynchus Tschudi (Anura: Hylidae) from Quadrilátero Ferrífero, Minas Gerais, southeastern Brazil. Zootaxa 4059(1): 96–114. DOI: 10.11646/zootaxa.4059.1.5 Reference page. 

• Roberto, I.J., Araujo-Vieira, K., Carvalho-e-Silva, S.P. & Ávila, R.W. 2017. A New Species of Sphaenorhynchus (Anura: Hylidae) from Northeastern Brazil. Herpetologica 73(2): 148–161. DOI: 10.1655/HERPETOLOGICA-D-16-00021 Reference page. 

• Araujo‐Vieira, K., Blotto, B.L., Caramaschi, U., Haddad, C,F.B., Faivovich, J. & Grant, T. 2019. A total evidence analysis of the phylogeny of hatchet‐faced treefrogs (Anura: Hylidae: Sphaenorhynchus). Cladistics 35(5): 469–486. DOI: 10.1111/cla.12367 Reference page. 

Links

• Frost, D.R. 2021. Sphaenorhynchus. Amphibian Species of the World: an Online Reference. Version 6.1 (3 May 2022). Electronic Database accessible at https://amphibiansoftheworld.amnh.org/index.php. American Museum of Natural History, New York, USA. DOI: 10.5531/db.vz.0001