Leptodactylus stenodema Jiménez de la Espada, 1875, Vert. Viaje Pacif. Verif. 1862-1865: 64. Syntypes: MNCN (2 specimens); MNCN 190 designated lectotype by Heyer and Peters, 1971, Proc. Biol. Soc. Washington, 84: 168; now numbered MNCN 1687 according to González-Fernández, García-Díez, and San Segundo, 2009, Spixiana, München, 32: 273. Type locality: "San José de Moti (Canton de Quíjos)", Napo, Ecuador. (This confirmed by González-Fernández, García-Díez, and San Segundo, 2009, Spixiana, München, 32: 273.)
Leptodactylus vilarsi Melin, 1941, Göteborgs K. Vetensk. Vitterh. Samh. Handl., Ser. B, 1: 52. Holotype: NHMG Ba. ex. 498, according to Heyer, 1979, Smithson. Contrib. Zool., 301: 14. Type locality: "Taracuá, Rio Uaupés, [Amazonas,] Brazil". Synonymy by Heyer, 1979, Smithson. Contrib. Zool., 301: 14.
San Jose White-lipped Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 82).
Central and western Amazon basin of Brazil; from Colombia south to Peru and east to the Guianas.
In the Leptodactylus pentadactylus group of Heyer, 1972, Contrib. Sci. Nat. Hist. Mus. Los Angeles Co., 231: 1-8, and Heyer, 1979, Smithson. Contrib. Zool., 301: 1-43. See Pyburn and Heyer, 1975, Copeia, 1975: 585-587, for account. Lescure and Marty, 2000, Collect. Patrimoines Nat., Paris, 45: 252-253, provided a photo and brief account for French Guiana. Zimmerman and Rodrigues, 1990, in Gentry (ed.), Four Neotropical Rainforests: 426-454, provided a record from near Manaus, Amazonian Brazil. Von May, 2004, Herpetol. Rev., 35: 282, provided a Peruvian record and briefly discussed the range. See account for Surinam population by Ouboter and Jairam, 2012, Amph. Suriname: 262-265.
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