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
South American Cross Country Championships South American Cross Country Championships The South American Cross Country Championships is an annual continental cross country running competition for athletes from South America or, more specifically, member countries of CONSUDATLE. It was first held in 1986, making it the oldest of the continental cross country championships. The event is typically held in late February or early March. The South American Championships in Athletics were the precursor to the competition in that cross country was featured on the main athletics programme between 1924 and 1949. After the introduction of an independent championships in 1986, multiple races were held: the initial