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 (horse) to Lambton, Cocoa Nut and Lopez. In her first start of the year in May, Formosa was second in the two-mile and two-furlong Tradesman's Plate run at Chester, losing to the mare Our Mary Ann. In June at Ascot, Formosa was beaten by Siderolite in the running for the two-mile Gold Vase. At the July meeting at Newmarket, Formosa was beaten by ten lengths by the 5-year-old mare Mysotia in the running for the £105 Queen's Plate. "The Sporting Review" commented on Formosa's poor form during the season, "[she] is being hacked about all over the country and losing her