Accepted by M. Vences: 17 Jan. 2013; published: 5 Mar. 2013 ZOOTAXA ISSN 1175-5326 (print edition) ISSN 1175-5334 (online edition) Copyright © 2013 Magnolia Press Zootaxa 3620 (1): 147–162 www.mapress.com/ zootaxa/ Article 147 http://dx.doi.org/10.11646/zootaxa.3620.1.7 http://zoobank.org/urn:lsid:zoobank.org:pub:C5F2E1C3-3BEE-43F6-AA91-47B4843C919A Morphometric and bioacoustic data on three species of Pseudopaludicola Miranda-Ribeiro, 1926 (Anura: Leptodactylidae: Leiuperinae) described from Chapada dos Guimarães, Mato Grosso, Brazil, with the revalidation of Pseudopaludicola ameghini (Cope, 1887) ANDRÉ PANSONATO 1 , CHRISTINE STRÜSSMANN 2 , JESSICA RHAIZA MUDREK 3 & ITAMAR ALVES MARTINS 1, 4 1 Pós–Graduação em Biologia Animal, Universidade Estadual Paulista (UNESP). Rua Cristóvão Colombo, 2265, Jardim Nazareth, 15054–000, São José do Rio Preto, São Paulo, Brazil 2 Departamento de Ciências Básicas e Produção Animal, Faculdade de Agronomia, Medicina Veterinária e Zootecnia, Universidade Federal de Mato Grosso (UFMT), Av. Fernando Correa da Costa, 2367, Boa Esperança, 78060–900, Cuiabá, Mato Grosso, Brazil 3 Graduação em Licenciatura e Bacharelado em Ciências Biológicas, Centro Universitário de Várzea Grande (UNIVAG), Av. Dom Orlando, 2655, Cristo Rei, 78118–900, Várzea Grande, Mato Grosso, Brazil 4 Laboratório de Zoologia, Instituto Básico de Biociências, Universidade de Taubaté (UNITAU), Av. Tiradentes, 500, 12030–180, Taubaté, São Paulo, Brazil 5 Corresponding author. E-mail: andreufmt@gmail.com Abstract Due to minute size, overall morphological similarities, scarcity of diagnostic characters after preservation, and usual sympatric or even syntopic occurrence of two or more species of Pseudopaludicola, the taxonomy of the genus is not yet a matter of consensus. Three species in the genus Pseudopaludicola Miranda-Ribeiro, 1926 were described by Cope in 1887, based on material obtained at Chapada dos Guimarães, mid-western state of Mato Grosso, Brazil. One of these species, Pseudopaludicola ameghini, was subsequently synonymized to P. mystacalis. In this paper we present morphological and bioacoustic evidences supporting a full specific status for the three sympatric species of Pseudopaludicola described from Chapada dos Guimarães, including Pseudopaludicola ameghini Cope, 1887. Key words: Advertisement call, morphology, Pseudopaludicola ameghini, Pseudopaludicola mystacalis, Pseudopaludi- cola saltica, revalidation, synonymy Introduction The genus Pseudopaludicola Miranda-Ribeiro, 1926 currently comprises 15 valid species (Frost 2011; Carvalho 2012; Pansonato et al. 2012). Representatives of these species are widely distributed throughout South America, from northern Colombia to Argentina and Uruguay (Frost 2011), in open grasslands (seasonally flooded or not), open environments in the vicinities or even inside tropical rainforests, and dry forests (Lynch 1989; Lobo 1992; Pansonato et al. 2012). Small size (individuals up to 23 mm), morphological similarities, and polychromatism render to distinct species of Pseudopaludicola an overall similarity, which resulted in long-lasting taxonomic inconsistencies within the genus (Haddad & Cardoso 1987; Giaretta & Facure 2009; Fávero et al. 2011). Three species in the genus Pseudopaludicola were described by Cope (1887) based on material obtained at Chapada dos Guimarães, mid-western state of Mato Grosso, Brazil: Pseudopaludicola ameghini, Pseudopaludicola mystacalis, and Pseudopaludicola saltica. These three taxa, originally described as Paludicola Wagler, 1830, were later considered synonyms of Pseudopaludicola falcipes (Hensel, 1867) by Milstead (1963), a taxonomic decision not recognized by subsequent authors, including Bokermann (1966) and Lynch (1971). Bokermann (1966) also considered Pseudopaludicola ternetzi Miranda-Ribeiro, 1937 a synonym of P. ameghini. Morphological differences mentioned in the original descriptions of P. ameghini and P. mystacalis include the TERMS OF USE This pdf is provided by Magnolia Press for private/research use. Commercial sale or deposition in a public library or website is prohibited.