Atractus torquatus (Duméril et al., 1854)

Type locality. Paramaribo, Suriname .

Distribution. Known from Brazil, Colombia, Peru, Suriname, and Venezuela (Plt. 186A). In Brazil, widespread in northern Amazonia and in its contact with Guianan savanna (Plt. 186A) at low elevations (Plt. 186B). Observed in the field in primary and secondary forest, and savanna (Dixon and Soini, 1977, 1986, Hoogmoed, 1980, Martins and Oliveira, 1993).