Bothrocophias hyoprora (Amaral, 1935)

Type locality. La Pedrera, Colombia .

Distribution. Known from Bolivia, Brazil, Colombia, Ecuador, and Peru, mostly in Amazonia (Plt. 50A). In Brazil, widespread in western Amazonia (Plt. 50A) at low elevations (Plt. 50B). Previous maps and taxonomy in Campbell and Lamar (2004). Observed in the field in forest and disturbed areas (Campbell and Lamar, 2004).