Uma nova espécie do gênero Atractus wagler, 1928 (Colubridae: Dipsadinae) do Cerrado do Brasil Central

Abstract

Atractus edioi sp. n. is described from the region of the Cana

New record of Amphisbaena fuliginosa (Squamata, Amphisbaenidae) for the Cerrado Biome, in an area of extensive cattle ranching

“…The color pattern of our specimen is similar to that described by Vanzolini (2002) for other specimens from Goiás state, corroborating the uniform color pattern observed for Cerrado populations (Vanzolini 2002 Richness and distribution of the herpetofauna in Cerrado biome is probably under estimated (Bini et al 2006), and many species have been recently described (e.g., Silva et al 2005, Torres-Carvajal 2005. The discovery of A. fuliginosa so far south of its previously known localities indicates that this species have a wider distribution in this biome.…”

Redescription ofAtractus punctiventrisand Description of Two NewAtractus(Serpentes: Dipsadidae) from Brazilian Amazonia

“…Thereafter, we compared qualitatively the samples from Brazilian Amazonia with all known specimens of A. punctiventris, A. insipidus, and the cis-Andean congeners from provinces 25 and 30-40 of Morrone (2014). We conclude that two populations previously identified as Atractus insipidus in the eastern (Cunha and Nacimento 1983) and western (Silva 1993;Silva et al 2005) portion of Brazilian Amazonia are not conspecific with A. insipidus and A. punctiventris or any previously recognized congener (see below in comparisons). Furthermore, these are allopatric, and each population has unique qualitative characters of color pattern and hemipenis in addition to nonoverlapping meristic and morphometric characters (Table 1).…”

“…Passos et al (2010b) assigned the last three species to the A. pantostictus species group. However, the everted conditions of the hemipenes for A. insipidus is so far unknown (Passos et al 2013a), and the association made by was based on specimens identified tentatively as A. insipidus by Silva (1993) and Silva et al (2005;now A. boimirim). Given our misunderstanding of the phylogenetic relationship of Atractus and its impressive diversity of species and forms, restriction of the comparative universe to morphologically similar taxa can improve significantly the taxonomic routine (¼ identifications) within the genus (Passos et al 2013b,c,d).…”

“…However, 10 yr later Cunha and Nascimento (1993) did not include A. insipidus in their account on the snakes from east Brazilian Amazonia and, apparently, had reconsidered their previous identification as A. insipidus. Silva (1993) and Silva et al (2005) identified many individuals collected during the faunal rescue of the Samuel hydroelectric power plant carried out at the Jamari River (a tributary of Madeira River) in Brazil as Atractus cf. insipidus and Atractus insipidus, respectively.…”

Two new species of Atractus from Colombia (Reptilia, Squamata, Dipsadidae)

“…The dipsadine genus Atractus Wagler 1828 constitutes the most diverse snake genus in the world with over 140 currently recognized species (Passos et al 2013a). Although the genus is widely distributed, ranging from Panama to northeastern Argentina (Giraudo & Scrocchi 2000;Myers 2003), most of the species are endemic to small geographical ranges (Myers 2003;Passos et al 2010;Prudente & Passos 2008;Passos et al 2013c;Silva et al 2005). The species of this genus inhabit different types of tropical forests, either primary or secondary, and there are even records of species in banana plantations or urban areas (Esqueda & La Marca 2005;Passos et al 2007b).…”