Bothrops neuwiedi subtriangular, or headphone-shaped and oppose each other middorsally. The belly is white or yellow with gray speckling. Juveniles have a white tail tip. This species is found in South America east of the Andes and south of approx. 5°S, including Brazil (southern Maranhão, Piauí, Ceará, Bahia, Goiás, Mato Grosso, an isolated population in Amazonas, Rondônia and all southern states), Bolivia, Paraguay, Argentina (Catamarca, Córdoba, Corrientes, Chaco, Entre Ríos, Formosa, Jujuy, La Pampa, La Rioja, Mendoza, Misiones, Salta, San Juan, San Luis, Santa Fe, Santiago del Estero and Tucumán) and Uruguay. According to Vanzolini (1981), the type locality given is ""provincia
Provinces of Argentina Congressional decision—and the President appoints a representative or intervenor, who will serve for a short time until the emergency is solved. Since 1983 four provinces were intervened, namely Catamarca, Corrientes (twice), Santiago del Estero (twice) and Tucumán. During the 20th century, some provinces have had governments traditionally controlled by a single family (i.e. the Saadi family in Catamarca, or the Sapag family in Neuquén); in one case, it is still the situation as of 2009: the Province of San Luis was ruled almost without a break by the Rodríguez Saá family since December 1983. Article 61 of the Constitution of