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Published: 2021-01-06
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A new species of Scinax Wagler (Hylidae: Scinaxini) from the tropical forests of Northeastern Brazil

Programa de Pós-Graduação em Zoologia, Universidade Estadual de Santa Cruz, Rodovia Jorge Amado, Km 16, CEP 45662-900, Ilhéus, Bahia, Brazil.
División Herpetología, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”—CONICET, Av. Ángel Gallardo 470, C1405DJR, Buenos Aires, Argentina.
Programa de Pós-graduação em Biologia de Ambientes Aquáticos Continentais, Laboratório de Vertebrados, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande—FURG, Av. Itália, Km 8, CEP 96201-900, Rio Grande, Rio Grande do Sul, Brazil.
Departamento de Biologia, Universidade Federal do Ceará, Avenida Mister Hull, s/n, Núcleo Regional de Ofiologia, Bloco 905, Pici, CEP 60020181, Fortaleza, Ceará, Brazil.
Programa de Pós-Graduação em Zoologia, Universidade Estadual de Santa Cruz, Rodovia Jorge Amado, Km 16, CEP 45662-900, Ilhéus, Bahia, Brazil.
Programa de Pós-Graduação em Zoologia, Universidade Estadual de Santa Cruz, Rodovia Jorge Amado, Km 16, CEP 45662-900, Ilhéus, Bahia, Brazil. Zoologisches Forschungsmuseum Alexander Koenig, Adenauerallee 160, D-53113 Bonn, Germany.
Laboratório de Herpetologia, Departamento de Biodiversidade and Centro de Aquicultura (CAUNESP), Universidade Estadual Paulista—UNESP, Av. 24 A, 1515, Bairro Bela Vista, CEP 13506-970, Rio Claro, São Paulo, Brazil.
Programa de Pós-graduação em Biologia de Ambientes Aquáticos Continentais, Laboratório de Vertebrados, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande—FURG, Av. Itália, Km 8, CEP 96201-900, Rio Grande, Rio Grande do Sul, Brazil.
Amphibia Atlantic Forest Bioacoustic “Brejos de Altitude” “Brejos Nordestinos” Morphology Northeastern Highlands Taxonomy Tropicália


We describe a new species of the Scinax ruber clade from Northeastern Brazil that occurs in widely separated geographic areas in the Atlantic Forest of southern Bahia state and the Highland Humid Forest of Serra de Baturité, northeast Ceará state. Scinax tropicalia sp. nov. (holotype coordinates: -14.795694°, -39.172645°) is diagnosed from all 75 currently recognize species of the S. ruber clade by bioacoustical and morphological adult traits, such as duration (0.11–0.31 s) and dominant frequency (1.59–1.85 kHz) of the advertisement call, snout shape rounded, nearly rounded, or semi-circular in dorsal view and rounded to slightly protruding in profile, bilobate vocal sac, absence of pectoral glands and spicule-shaped papillary epidermal projections on nuptial pads, and color pattern on the dorsum of body and hidden surfaces of hindlimbs.



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