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 Peru country. The province with the fewest districts is Purús Province, with just one district. The province with the most districts is Lima Province, with 43 districts. The most common number of districts per province is eight, a total of 29 provinces share this number of districts. The table below shows all provinces with their capitals and the region in which they are located. The UBIGEO code uniquely identifies each province. Capitals in bold are also a regional capital. Provinces in which the region's capital is located all have an UBIGEO code ending in codice_1. Provinces of Peru The provinces of