Bothrops ammodytoides is known as "Yarará ñata" (Spanish for "short-nosed yarará"), making reference to its characteristic snout. Found only in Argentina in the provinces of Buenos Aires, Catamarca, Córdoba, Chubut, La Pampa, La Rioja, Mendoza, Neuquén, Río Negro, San Juan, San Luis, Santa Cruz and Tucumán. The vertical distribution ranges from sea level to at least altitude. The type locality was first listed as "northern Argentina" and later emended to "province of Mendoza" Campbell and Lamar (1989). The geographic range of "Bothrops ammodytoides" extends to 47° S Latitude, which may make it the world's southernmost snake. Prefers dry regions, occurring in temperate
Catamarca Province (partly through La Rioja) to Chile by the Paso de San Francisco (4722 m), 64 west from Santiago del Estero to join 38 and 157 north from La Guardia 103 km to Frias where it connects with 89 west from Villa San Martin (Santiago del Estero), and north to Tucuman province at San Pedro, connecting with 64 near Las Cañas. There is an airport at Catamarca. Since its foundation in 1991 by the Catamarcan branch of the Radical Civic Union and minor local parties the Civic and Social Front of Catamarca has dominated state politics. It has held the governor's