Leptodactylus vastus Lutz, 1930, Mem. Oswaldo Cruz, Rio de Janeiro, 23: 32. Holotype: AL-MNRJ 70, according to museum records (W. R. Heyer, personal commun.). Type locality: "Independencia (Parayba)", Brazil. Noted by Heyer, 2005, Arq. Zool., São Paulo, 37: 335, to now be called Guarabira, Paraiba, at 06° 51′ S, 35° 29′ W. Reported incorrectly as a replacement name for Leptodactylus gigas Lutz, 1926, by Bokermann, 1966, Lista Anot. Local. Tipo Anf. Brasil.: 75.
Northeastern Pepper Frog (Heyer, 2005, Arq. Zool., São Paulo, 37: 335).
Two distantly allopatric populations: northeastern Brazil and Amazonian Bolivia.
Removed from the synonymy of Leptodactylus pentadactylus by Heyer, 2005, Arq. Zool., São Paulo, 37: 335, where it had been placed by Heyer, 1979, Smithson. Contrib. Zool., 301: 23. Silva, Santos, Alves, Sousa, and Annunziata, 2010, Sitientibus, Ser. Cienc. Biol., 7: 334-340, provided records for Piauí, Brazil. Vieira, Santana, and Vieira, 2007, Zootaxa, 1397: 61-68, reported on comparative tadpole morphology. See comment under Leptodactylus labyrinthicus. Jansen and Schultze, 2012, Zootaxa, 3307: 35-47, suggested that populations of Leptodactylus in Bolivia, previously assigned to Leptodactylus labyrinthicus actually represent an isolated population of Leptodactylus vastus or an unnamed species closely related to Leptodactylus vastus.
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