Atractus major Boulenger, 1894

Type locality. Canelos, province of Pastaza, Ecuador .

Distribution. Known from Bolivia, Brazil, Colombia, Ecuador, Peru, and Venezuela in Amazonian forest (Plt. 170A).In Brazil,widespread in Amazonia (Plt. 170A), mostly at low elevations (Plt. 170B). Observed in the field in primary and secondary forest (Dixon and Soini, 1977; Martins and Oliveira, 1993; Schargel et al., 2013).