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
Formosa Expedition Formosa Expedition The Formosa Expedition, or the Taiwan Expedition of 1867 was a punitive expedition launched by the United States against Formosa. The expedition was undertaken in retaliation for the Rover incident, in which the "Rover", an American bark, had been wrecked and its crew massacred by aboriginal Paiwan warriors in March 1867. A United States Navy and Marine company landed in southern Formosa and attempted to advance into the native village. The natives deployed a significant amount of guerrilla warfare, which they ambushed, skirmished, disengaged and retreated repeatedly. Eventually the Marines ceased their pursuit when their commander was killed,