Frost, Darrel R. (2017). "Sphaenorhynchus Tschudi, 1838". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 11 June 2017.
amphibiaweb.org
"Hylidae". AmphibiaWeb. University of California, Berkeley. 2017. Retrieved 11 June 2017. (recently described Sphaenorhynchus cammaeus not yet included)
doi.org
Araujo-Vieira, K.; Lacerda, J. V. A.; Pezzuti, T. L.; Leite, F. S. F.; de Assis, C. L.; Cruz, C. A. G. (21 December 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. hdl:11336/85191. PMID26701555.
Roberto, Igor Joventino; Araujo-Vieira, Katyuscia; de Carvalho-e-Silva, Sergio Potsch; Ávila, Robson Waldemar (June 2017). "A new species of Sphaenorhynchus (Anura: Hylidae) from northeastern Brazil". Herpetologica. 73 (2): 148–161. doi:10.1655/HERPETOLOGICA-D-16-00021. hdl:11336/48862. S2CID91143723.
Faivovich, Julián; Haddad, Célio F.B.; Garcia, Paulo C.A.; Frost, Darrel R.; Campbell, Jonathan A.; Wheeler, Ward C. (2005). "Systematic review of the frog family Hylidae, with special reference to Hylinae: phylogenetic analysis and taxonomic revision". Bulletin of the American Museum of Natural History. 294: 1–240. CiteSeerX10.1.1.470.2967. doi:10.1206/0003-0090(2005)294[0001:SROTFF]2.0.CO;2. hdl:2246/462. S2CID83925199.
handle.net
hdl.handle.net
Araujo-Vieira, K.; Lacerda, J. V. A.; Pezzuti, T. L.; Leite, F. S. F.; de Assis, C. L.; Cruz, C. A. G. (21 December 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. hdl:11336/85191. PMID26701555.
Roberto, Igor Joventino; Araujo-Vieira, Katyuscia; de Carvalho-e-Silva, Sergio Potsch; Ávila, Robson Waldemar (June 2017). "A new species of Sphaenorhynchus (Anura: Hylidae) from northeastern Brazil". Herpetologica. 73 (2): 148–161. doi:10.1655/HERPETOLOGICA-D-16-00021. hdl:11336/48862. S2CID91143723.
Faivovich, Julián; Haddad, Célio F.B.; Garcia, Paulo C.A.; Frost, Darrel R.; Campbell, Jonathan A.; Wheeler, Ward C. (2005). "Systematic review of the frog family Hylidae, with special reference to Hylinae: phylogenetic analysis and taxonomic revision". Bulletin of the American Museum of Natural History. 294: 1–240. CiteSeerX10.1.1.470.2967. doi:10.1206/0003-0090(2005)294[0001:SROTFF]2.0.CO;2. hdl:2246/462. S2CID83925199.
nih.gov
pubmed.ncbi.nlm.nih.gov
Araujo-Vieira, K.; Lacerda, J. V. A.; Pezzuti, T. L.; Leite, F. S. F.; de Assis, C. L.; Cruz, C. A. G. (21 December 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. hdl:11336/85191. PMID26701555.
psu.edu
citeseerx.ist.psu.edu
Faivovich, Julián; Haddad, Célio F.B.; Garcia, Paulo C.A.; Frost, Darrel R.; Campbell, Jonathan A.; Wheeler, Ward C. (2005). "Systematic review of the frog family Hylidae, with special reference to Hylinae: phylogenetic analysis and taxonomic revision". Bulletin of the American Museum of Natural History. 294: 1–240. CiteSeerX10.1.1.470.2967. doi:10.1206/0003-0090(2005)294[0001:SROTFF]2.0.CO;2. hdl:2246/462. S2CID83925199.
semanticscholar.org
api.semanticscholar.org
Roberto, Igor Joventino; Araujo-Vieira, Katyuscia; de Carvalho-e-Silva, Sergio Potsch; Ávila, Robson Waldemar (June 2017). "A new species of Sphaenorhynchus (Anura: Hylidae) from northeastern Brazil". Herpetologica. 73 (2): 148–161. doi:10.1655/HERPETOLOGICA-D-16-00021. hdl:11336/48862. S2CID91143723.
Faivovich, Julián; Haddad, Célio F.B.; Garcia, Paulo C.A.; Frost, Darrel R.; Campbell, Jonathan A.; Wheeler, Ward C. (2005). "Systematic review of the frog family Hylidae, with special reference to Hylinae: phylogenetic analysis and taxonomic revision". Bulletin of the American Museum of Natural History. 294: 1–240. CiteSeerX10.1.1.470.2967. doi:10.1206/0003-0090(2005)294[0001:SROTFF]2.0.CO;2. hdl:2246/462. S2CID83925199.