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Abstract
A new species of Scinax Wagler, 1830 belonging to the S. catharinae species group is described from the state of Goias, in the Cerrado Biome, Brazil. Scinax skaios sp. nov. is characterized by short snout-vent length (males ranging 23.2-29.6 mm; females 30.7- 36.1 mm), snout subovoid in dorsal view and protruding in lateral view; no tubercle on canthus rostralis; an inverted triangular interorbital blotch; no externally expanded vocal sac; dorsal skin texture moderately rugose; absence of a thick externally well differentiated inguinal gland; hidden areas of the thigh with vermiculate color pattern. The descriptions of the vocalizations are provided.
Highlights
During field work in central Brazil in 2005, we (RRC and MASC) collected specimens of the Scinax catharinae species group at Santa Rita do Novo Destino, state of Goiás, Central Brazil. These are different from all other recognized taxa in the species group and are described. This new species and S. centralis are the most inland taxa found in gallery forest from Cerrado Domain, in Brazil
Specimens used in the description or examined for comparisons are deposited in theAdolpho Lutz Collection (AL-MN, housed in Museu Nacional, Rio de Janeiro, Brazil), Museu de Ciências Naturais da PUC Minas (MCNAM, Belo Horizonte, Minas Gerais, Brazil), and Museu Nacional (MNRJ, Rio de Janeiro, Brazil)
From S. ranki, the new species can be distinguished by being larger, some overlapping occurs in S. ranki male SVL 20.2-24.8 mm (ANDRADE & CARDOSO 1987), and by the more rugose dorsal skin, and vocal sac not expanded – lateral and slightly expanded in S. ranki (ANDRADE & CARDOSO 1987)
Summary
Specimens used in the description or examined for comparisons are deposited in theAdolpho Lutz Collection (AL-MN, housed in Museu Nacional, Rio de Janeiro, Brazil), Museu de Ciências Naturais da PUC Minas (MCNAM, Belo Horizonte, Minas Gerais, Brazil), and Museu Nacional (MNRJ, Rio de Janeiro, Brazil). Even though the male SVL of S. skaios and S. luizotavioi – males 21.8-24.3 mm SVL (CARAMASCHI & KISTEUMACHER 1989) sometimes overlap, S. skaios can be generally recognized y its larger size, less acuminate snout in dorsal view, skin of dorsum more rugose (smooth with tubercles scattered on the dorsum in S. luizotavioi), and vocal sac not expanded (lateral and slightly expanded in S. luizotavioi). From S. ranki, the new species can be distinguished by being larger, some overlapping occurs in S. ranki male SVL 20.2-24.8 mm (ANDRADE & CARDOSO 1987), and by the more rugose dorsal skin (smooth with tubercles scattered on dorsum in S. ranki), and vocal sac not expanded – lateral and slightly expanded in S. ranki (ANDRADE & CARDOSO 1987).
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