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
San Fernando del Valle de Catamarca founded until 1683, by Fernando de Mendoza y Mate de Luna. "Catamarca" comes from Quechua meaning "fortress on the slope". The city, which had only 8,000 inhabitants in 1882 and was reached by a railway line in 1888, grew very slowly, and the region remained poor even in the middle of the 20th century. This situation was exacerbated by nepotism on the part of the ruling Saadi family, before they lost political power in the 1990s. In spite of this, the province remains still politically unstable, and a large part of its population lives in precarious conditions. The warm semi-arid