Siphlophis worontzowi (Prado, 1940)

Type locality. Rio Amanã, near its confluence with the Parauari, Maués, state of Amazonas, Brazil (fide Costa et al., 2010b) .

Distribution. Known from Bolivia, Brazil, and Peru (Plt. 343A). Widespread in southern Amazonia, with marginal records in the Cerrado (Plt. 343A), at low elevations (Plt. 343B). Observed in the field in forest, flooded forest, open areas, and disturbed sites (Silva, 1993; Bernarde and Abe, 2006; Costa et al., 2010b; Dal Vechio et al., 2015).