Scinax x-signatus (Spix, 1824)

Class: Amphibia > Order: Anura > Family: Hylidae > Subfamily: Scinaxinae > Genus: Scinax > Species: Scinax x-signatus

Hyla x-signata Spix, 1824, Animal. Nova Spec. Nov. Test. Ran. Brasil.: 40. Type(s): Not designated, although including animal figured on pl. 11, fig. 3 of the original publication; holotype was ZSM 2494/0, now lost, according to Hoogmoed and Gruber, 1983, Spixiana, München, Suppl., 9: 364, and confirmed by Glaw and Franzen, 2006, Spixiana, München, 29: 170. Pugliese, Baêta, and Pombal, 2009, Zootaxa, 2269: 61, suggested that a neotype designation is needed; Sturaro and Peloso, 2014, Pap. Avulsos Zool., São Paulo, 54: 19-20, repeated these concerns. Type locality: "Provincia Bahiae", Brazil.

Hyla affinis Spix, 1824, Animal. Nova Spec. Nov. Test. Ran. Brasil.: 33. Type(s): Not specifically designated but including animal figured on pl. 7, fig. 3 of the original publication; ZSM 2495/0 is holotype according to Hoogmoed and Gruber, 1983, Spixiana, München, Suppl., 9: 363, and Glaw and Franzen, 2006, Spixiana, München, 29: 165. Type locality: "fluminis Amazonum" = Rio Amazonas, Brazil. Synonymy by Hoogmoed and Gruber, 1983, Spixiana, München, Suppl., 9: 364. Sturaro and Peloso, 2014, Pap. Avulsos Zool., São Paulo, 54: 19-20, doubted this synonymy by made no taxonomic change. 

Hyla coerulea Spix, 1824, Animal. Nova Spec. Nov. Test. Ran. Brasil.: 37. Type(s): Not designated, but including animal figured in pl. 10, fig. 1 of the original publication; syntypes are ZSM 2710/0 (2 specimens) of which ZSM 2710/0A selected lectotype by Hoogmoed and Gruber, 1983, Spixiana, München, Suppl., 9: 364. Type locality: "Egcá ad flumen Solimoëns" = Ege, Teffe, Brazil. See comments by Glaw and Franzen, 2006, Spixiana, München, 29: 166. Synonymy with Hyla rubra by Peters, 1872, Monatsber. Preuss. Akad. Wiss. Berlin, 1872: 212, 226; Boulenger, 1882, Cat. Batr. Sal. Coll. Brit. Mus., Ed. 2: 403. Junior secondary homonym of Rana caerulea White, 1790 (= Pelodryas caerulea). Transferred to the synonymy of Scinax x-signata by Hoogmoed and Gruber, 1983, Spixiana, München, Suppl., 9: 363. Sturaro and Peloso, 2014, Pap. Avulsos Zool., São Paulo, 54: 19-20, doubted this synonymy but made no taxonomic change. 

Auletris coeruleaWagler, 1830, Nat. Syst. Amph.: 201.

Hyla rubra x-signataMüller, 1927, Abh. Senckenb. Naturforsch. Ges., 40: 266.

Hyla x-signata x-signataLutz, 1973, Brazil. Spec. Hyla: 147.

Ololygon x-signataFouquette and Delahoussaye, 1977, J. Herpetol., 11: 393.

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

Scinax x-signatusKöhler and Böhme, 1996, Rev. Fr. Aquar. Herpetol., 23: 139.

English Names

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

Distribution

Non-forest habitats of northern Colombia and Venezuela to Surinam; eastern, southern, and southeastern Brazil; introduced into Guadeloup e(Basse Terre and Grande Terre), Marie Galante, and La Désirade. 

Comment

In the Scinax ruber group of Pombal, Haddad, and Kasahara, 1995, J. Herpetol., 29: 1–6; formerly in the Scinax x-signatus group. The Scinax ruber group rejected as nonmonophyletic by Faivovich, 2002, Cladistics, 18: 367–393. In the Scinax ruber clade of Faivovich, Haddad, Garcia, Frost, Campbell, and Wheeler, 2005, Bull. Am. Mus. Nat. Hist., 294: 96. See Cei, 1980, Monit. Zool. Ital., N.S., Monogr., 2: 488–491; and Heyer, Rand, Cruz, Peixoto, and Nelson, 1990, Arq. Zool., São Paulo, 31: 282–283. JPP considers this name to represent several species. Lescure and Marty, 2000, Collect. Patrimoines Nat., Paris, 45: 174–175, provided a photo and brief account of a member of the Scinax x-signatus complex for French Guiana. Izecksohn and Carvalho-e-Silva, 2001, Anf. Municipio Rio de Janeiro: 62, provided a brief account and photo. Gorzula and Señaris, 1999 "1998", Scient. Guaianae, 8: 38–39, commented on distribution and potential for confusion with Scinax ruber in Venezuela. Silva, Santos, Alves, Sousa, and Annunziata, 2010, Sitientibus, Ser. Cienc. Biol., 7: 334–340, provided records for Piauí. Ugueto and Rivas-Fuenmayor, 2010, Amph. Rep. Margarita Coche Cubagua: 73–75, provided an account for the population (as Scinax aff. x-signatus) on the Venezuelan island of Margarita. See account for Surinam population by Ouboter and Jairam, 2012, Amph. Suriname: 188–189. See Cole, Townsend, Reynolds, MacCulloch, and Lathrop, 2013, Proc. Biol. Soc. Washington, 125: 317–578, for brief account and records for Guyana and also provided a personal communication from J. Faivovich that confident application of this name to Guyanan populations requires additional research. Henderson and Powell, 2009, Nat. Hist. Rept. Amph. W. Indies: 90, summarized the natural history literature of the Antillean introduced populations. Novaes and Zina, 2016, Zootaxa, 4084: 258–266, reported on the advertisement call of Scinax cf. x-signatus

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