Scinax squalirostris (Lutz, 1925)

Class: Amphibia > Order: Anura > Family: Hylidae > Subfamily: Hylinae > Genus: Scinax > Species: Scinax squalirostris

Hyla leucotaenia Burmeister, 1861, Reise La Plata-Staaten, 2: 531. Type(s): Not stated, ZMB 7376 considered holotype by Duellman, 1977, Das Tierreich, 95: 88. Pinheiro, Faivovich, Langone, and Kwet, 2014, Zootaxa, 3884: 179–184, noted that the original description referenced two specimens of which 7376 is the sole survivor. Type locality: "Bei Paraná, in den Gebüschen am ufer der Lagunen", Argentina. Synonymy (as Hyla leucotaenia Günther, 1868) with Hyla bracteator by Boulenger, 1882, Cat. Batr. Sal. Coll. Brit. Mus., Ed. 2: 395; with Hyla pulchella by Berg, 1896, An. Mus. Nac. Hist. Nat. Buenos Aires, 5: 201. Pinheiro, Faivovich, Langone, and Kwet, 2014, Zootaxa, 3884: 179–184, discussed the surviving syntype and regarded the name as a senior synonym (nomen oblitum) of Hyla squalirostris Lutz, 1925. 

Hyla squalirostris Lutz, 1925, C. R. Mém. Hebd. Séances Soc. Biol. Filial., Paris, 93 (1925, vol. 2): 212. Syntypes: Not stated; but including AL-MNRJ 954–955 and USNM 96719–20, according to Cochran, 1961, Bull. U.S. Natl. Mus., 220: 61, and Duellman, 1977, Das Tierreich, 95: 102. Type locality: "Serra da Bocaina"; corrected to "Bonito, Serra da Bocaina, boundary of São Paulo and Rio de Janeiro, Brazil" by Cochran, 1961, Bull. U.S. Natl. Mus., 220: 60, and given as "Fazenda do Bonito, Serra da Bocaina, São José do Barreiro, São Paulo", Brazil by Bokermann, 1966, Lista Anot. Local. Tipo Anf. Brasil.: 62.

Hyla lindneri Müller and Hellmich, 1936, Wissenschaft. Ergebn. Deutschen Gran Chaco Exped., Amph. Rept.: 63. Holotype: ZSM 169/1929a (lost) according to Glaw and Franzen, 2006, Spixiana, München, 29: 168; ZSM 169/1929 (two specimens, lost) reported in error as syntypes by Duellman, 1977, Das Tierreich, 95: 59. Type locality: "Junco viejo", Argentina; rendered as "Formosa, Formosa, Argentina" by Lavilla, 1994 "1992", Acta Zool. Lilloana, 42: 73. Synonymy with Hyla fuscomarginata by Lutz, 1973, Brazil. Spec. Hyla: 165. Subsequently placed by Lavilla and Cei, 2001, Monogr. Mus. Reg. Sci. Nat. Torino, 28: 56, as a synonym of Hyla squalirostris.

Hyla evelynae Schmidt, 1944, Field Mus. Nat. Hist. Publ., Zool. Ser., 29: 156. Holotype: FMNH 9561, by original designation. Type locality: "Hacienda Alvarez, 15 km northeast of San Carlos, Uruguay". Synonymy by Gallardo, 1961, Comun. Mus. Argent. Cienc. Nat. Bernardino Rivadavia, Cienc. Zool, 3: 155.

Hyla evelinaeCei and Pierotti, 1957, An. Depto. Invest. Cient. Secc. Biol. Univ. Nac. Cuyo, Tucuman, 2: 13. Spelling error.

Hyla squalirostris evelynae —Klappenbach In Klappenbach and Orejas-Miranda, 1969, Nuestra Tierra, Montevideo, 11: 26.

Ololygon squalirostrisFouquette and Delahoussaye, 1977, J. Herpetol., 11: 393.

Scinax squalirostrisDuellman and Wiens, 1992, Occas. Pap. Mus. Nat. Hist. Univ. Kansas, 151: 23.

English Names

Striped Snouted Treefrog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 64).

Long-snouted Treefrog (Eterovick and Sazima, 2004, Anf. Serra do Cipó: 69–70).


Pantanal region of southeastern Brazil (northern Goias and Minas Gerais west and south to western Mato Grosso do Sul and Rio Grande do Sul), eastern Paraguay, Uruguay, and northeastern Argentina; also recorded from western Bolivia (Apolo, La Paz) in an interandean dry valley far isolated from other records.

Geographic Occurrence

Natural Resident: Argentina, Bolivia, Brazil, Paraguay, Uruguay


In the Scinax ruber clade of Faivovich, Haddad, Garcia, Frost, Campbell, and Wheeler, 2005, Bull. Am. Mus. Nat. Hist., 294: 96. See nomenclatural discussion regarding Hyla lindneri Müller and Hellmich, 1936, and of Hyla evelynae, which was found to be distinctive, though not resurrected from synonymy by Klappenbach and Langone, 1992, An. Mus. Nac. Hist. Nat. Montevideo, Ser. 2, 8: 183–184. See account by Lutz, 1952, Mem. Oswaldo Cruz, Rio de Janeiro, 50: 615–624. Pombal, Bastos, and Haddad, 1995, Naturalia, São Paulo, 20: 213–225, reported  on the advertisement call. Brandão, Duar, and Sebben, 1997, Herpetol. Rev., 28: 93, provided a record for Brasilia, D.F., Brazil. Achaval and Olmos, 2003, Anf. Rept. Uruguay, ed. 2: 47, provided a brief account and photograph for the Uruguay population. Canelas and Bertoluci, 2007, Iheringia, Zool., 97: 21–26, provided a record for the Serra do Caraça, southern end of the Serra do Espinhaço, Minas Gerais, Brazil. Brusquetti and Lavilla, 2006, Cuad. Herpetol., 20: 12, briefly discussed range in Paraguay. Eterovick and Sazima, 2004, Anf. Serra do Cipó: 69–70, provided a photograph and brief account. Cruz, Feio, and Caramaschi, 2009, Anf. Ibitipoca: 108–109, provided photographs and a brief account for Parque Estadual do Ibitipoca, Minas Gerais, Brazil. Weiler, Núñez, Airaldi, Lavilla, Peris, and Baldo, 2013, Anf. Paraguay: 80, provided a brief account, image, and dot map for Paraguay. Faria, Signorelli, Morais, Bastos, and Maciel, 2013, North-West. J. Zool., Romania, 9: 329–336, reported on geographic variation in vocalization among populations of Scinax squalirostris, noting that the population from Cristalina municipality (state of Goiás, Brazil) might be a distinct species. Neves, Yves, Pereira Silva, Alves, Vasques, Coelho, and Silva, 2019, Herpetozoa, Wien, 32: 113–123, provided habitat information and records for western Minas Gerais, Brazil. Giaretta, Lopes, and Bang, 2020, Phyllomedusa, 19: 49–61, reported on geographic variation in the advertisement call and noted differences from previously published descriptions. Vaz-Silva, Maciel, Nomura, Morais, Guerra Batista, Santos, Andrade, Oliveira, Brandão, and Bastos, 2020, Guia Ident. Anf. Goiás e Dist. Fed. Brasil Central: 98, provided an account. Eterovick, Souza, and Sazima, 2020, Anf. Serra do Cipó: 1–292, provided an account, life history information, and an identification scheme for the Serra de Cipó, Minas Gerais, Brazil. Abreu-Jardim, Jardim, Ballesteros-Mejia, Maciel, and Collevatti, 2022, Diversity & Distributions, 27: 1519–1535, reported on molecular phylogeography and distribution. Pezzuti, Leite, Rossa-Feres, and Garcia, 2021, S. Am. J. Herpetol., 22 (Special Issue): 1–109, described and discussed larval morphology and natural history. Abreu-Jardim, Lima, Jardim, Maciel, Magalhães, Colli, Haddad, and Collevatti, 2023, J. Biogeograph., 50: 987–999, reported on molecular phylogeography. In the monotypic Scinax squalirostris group of Araujo-Vieira, Lourenço, Lacerda, Lyra, Blotto, Ron, Baldo, Pereyra, Suárez-Mayorga, Baêta, Ferreira, Barrio-Amorós, Borteiro, Brandão, Brasileiro, Donnelly, Dubeux, Köhler, Kolenc, Leite, Maciel, Nunes, Orrico, Peloso, Pezzuti, Reichle, Rojas-Runjaic, Silva, Sturaro, Langone, Garcia, Rodrigues, Frost, Wheeler, Grant, Pombal, Haddad, and Faivovich, 2023, S. Am. J. Herpetol., 27 (Special Issue): 89 (see comment under Hylinae). Santos, Feio, and Nomura, 2023, Biota Neotrop., 23 (3:e20231486): 1–43, characterized tadpole morphology as part of an identification key to the tadpoles of the Brazilian Cerrado. Vicente-Ferreira, Nascimento, Batista, Kardush, Reyes, and Garey, 2024, Biota Neotrop., 24(1: e20231526): 1–17, provided records from the Refúgio Biológico Bela Vista, Paraná, southern Brazil (adjacent to the Paraguay border), as well as providing identification keys to these species based on larval and adult morphology.  

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