A New Species of Atractus (Serpentes: Dipsadinae) from a Relictual Forest in Northeastern Brazil

A new species of Atractus (Serpentes: Dipsadidae) from Serra do Cipó, Espinhaço Range, Southeastern Brazil, with proposition of a new species group to the genus

“…The extreme reduced hemipenis bilobation in the A. paraguayensis members occurs also in the species of the A. pantostictus group (see Passos et al, 2010c); however, the A. pantostictus members present alary spines on both sides of the capitulum and a median projection on the distal region of capitulum (vs. absence of capitular alary spines and presence of a shallow invagination on the distal region of capitulum). In fact, the "alary spines" mentioned in the description of A. ronnie (Passos et al, 2007b) and A. altagratiae ) represents a particular condition for the development of transversal walls of the calyces having single and large spines, sometime laterally forming a transversal flounce, as showed by A. ronnie (Passos et al, 2007b(Passos et al, , 2010c. In the other hand, calyces from members of the A. paraguayensis group are small and present a series of spinules, resulting in narrowed and long spinulate flounces (vs. broad and short spinulate calyces and/or flounces in the A. pantostictus group).…”

“…Condition of the loreal scale follows Passos et al (2007b). Measurements were taken with a dial caliper to the nearest 0.1 mm, except for snout-vent length (SVL) and caudal length (CL), which were measured with a ruler to the nearest 1 mm.…”

“…The three remaining taxa represented range extensions from other biomes (A. pantostictus Fernandes &Puorto, 1993 andA. reticulatus Boulenger, 1885) or populations from naturally relictual humid forest close to the Brazilian coast (A. ronnie Passos, Fernandes & Borges-Nojosa, 2007), but formally included in the xerophytic Caatinga domain. In this monographic study, the authors provide comparable diagnoses and data on the morphological variation (meristic, morphometric, color pattern, maxillary bone, and hemipenis characters) for all recognized species.…”

Non-volant mammals from Baturité Ridge, Ceará state, Northeast Brazil

“…Baturité is the region richest in species and has a great importance in maintaining biodiversity and water resources for the state (Mantovani 2007). For example, this area is where Hoogmoed et al (1994) described the frog Adelophryne baturitensis; Rodrigues and Borges (1997) revealed the lizard Leposoma baturitensis; Tribe (2005) proposed a new subspecies of rodent (Rhipidomys cariri baturiteensis); Passos et al (2007) described the snake Atractus ronnie; Feijó and Langguth (2013) discovered Coendou baturitensis, a new species of porcupine, and Roberto et al (2014) revealed a new species of Bufonidae (Rhinella casconi). Additionally, this is one of the most important bird conservation sites in Northeast Brazil, due to the presence of 12 endangered species, including Pyrrhura grisepectus (Gray-breasted Parakeet), the most endangered parakeet of the Americas (Olmos et al 2005;Girão 2007).…”

Vulnerabilidade natural à extinção em serpentes da Serra do Mar, sudeste do Brasil

“…Atractus reticulatus: ACHAVAL & OLMOS, 2007;CARREIRA et al, 2004;GIRAUDO, 2001;GIRAUDO & SCROCCHI, 2000;PASSOS et al, 2005;PASSOS et al, 2007;SOUZA et al, 2003c;YANOSKY et al, 1996. Atractus serranus: PASSOS et al, 2005. Atractus trihedrurus: PASSOS et al, 2005;PASSOS et al, 2007. Atractus zebrinus PASSOS et al, 2005. Dipsas albifrons: ARGÔLO, 2004;PASSOS et al, 2005. Dipsas alternans: PASSOS et al, 2004.…”