Central Sipo

distribution

Distribution. Endemic to Brazil (Plt. 128 A). Widespread in the Cerrado, Atlantic Forest, and with isolated records in Pantanal and savanna enclaves in Amazonia (Plt. 128 A), mostly at intermediate to high elevations (Plt. 128 B). Previous maps and taxonomy in Dixon et al. (1993). Observed in the field in grassland, savanna, and coastal grassland (Nascimento et al., 1991; Dixon et al., 1993; FranÇa and Araújo, 2006; FranÇa et al., 2006).

Atlas of Brazilian Snakes: Verified Point-Locality Maps to Mitigate the Wallacean Shortfall in a Megadiverse Snake Fauna

Chironius quadricarinatus (Boie 1827) Boie 1827

Chironius quadricarinatus (Boie, 1827) “Cobra-de-cipó” (Figs. 11.6 and 24.1) A single record for the Caatinga, in Bahia state, municipality of Mucugê, Diamantina Plateau, 1,000 m elevation. It is also recorded for Atlantic Forest, Amazon Forest, Cerrado, and Pantanal (Dixon et al. 1993; Nogueira et al. 2010; Zaher et al. 2011). The area of occurrence of this species inside Caatinga has a complex phytophysiognomy including caatinga, cerrado, and moist forest vegetation. Freitas and Silva (2007) reported this species in cerrado savannas in the Diamantina Plateau, however, literature records indicate that Chironius quadricarinatus may occur both in open and forested areas (Dixon et al. 1993; Marques et al. 2001; Nogueira et al. 2010). It is widely distributed in the Cerrado region, where it is often found in open interfluvial savannas and open, riparian areas (Nogueira et al. 2011). It has semi-arboreal habits, is diurnal, and feeds mostly on frogs (Dixon et al. 1993).

Diversity, natural history, and geographic distribution of snakes in the Caatinga, Northeastern Brazil