Micrurus altirostris (Cope, 1860)

Type locality. America do Sul .

Distribution. Known from Argentina, Brazil, Paraguay, and Uruguay (Plt. 85A). In Brazil, widespread in Araucaria Forest and Pampas Grasslands, with marginal records in the southern portion of the Atlantic Forest (Plt. 85A), from low to high elevations (Plt. 85B). Previous maps and taxonomy in Roze (1996), Silva Jr. and Sites (1999), Campbell and Lamar (2004), and Silva Jr. et al. (2016). Observed in the field in grassland, savanna, forest, and disturbed areas (Roze, 1996; Campbell and Lamar, 2004; Sestren-Bastos, 2006; Bérnils, 2009).