About Bothrops moojeni Hoge, 1966
Bothrops moojeni is a medium to heavy-bodied terrestrial and nocturnal viper species. Its average total length including the tail is 1.6 m (5.2 ft), and a maximum length of 2.3 m (7.5 ft) has been recorded. Its base body color ranges from tan, gray-brown to olive-gray, with 14–21 dark gray to solid black trapezoidal markings along its sides. It has 23–29 rows of keeled dorsal scales across its body. Its belly is typically white or cream, scattered with dark gray spots. Juveniles of this species have white tails. When viewed from above, the broad, flattened head has a distinct lance shape, and is clearly separated from the narrow neck. The snout is not elevated, and the medium-sized eyes have vertically elliptical pupils. This species is considered very defensive. Bothrops moojeni is viviparous. Gestation occurs once per year and lasts around four months, with litters usually producing 12 to 14 neonates. On average, this species lives 15 years. It preys on small mammals, birds, lizards, other snakes, and amphibians. This species is distributed across northern Argentina, eastern Bolivia, Brazil, and Paraguay. Its type locality is Brasília, Distrito Federal, Brazil. It inhabits Araucaria moist forests and the Cerrado.
