Bothrops jararacussu Lacerda, 1884

Type locality. State of Rio de Janeiro, Brazil .

Distribution. Known from Argentina, Brazil, and Paraguay (Plt. 64A). Widespread in Atlantic Forest (Plt. 64A) at low to intermediate elevations (Plt. 64B). Previous maps and taxonomy in Campbell and Lamar (2004). Observed in the field in humid forest (Campbell and Lamar, 2004).