Boiruna sertanejaBoiruna sertaneja, also known commonly as a mussurana, is a species of snake in the subfamily Dipsadinae of the family Colubridae. The species is endemic to Brazil.DescriptionA medium to large snake, B. sertaneja may attain a snout-to-vent length of.HabitatThe preferred natural habitats of B. sertaneja are savanna and shrubland.DietB. sertaneja preys predominately upon snakes, but may also eat lizards.ReproductionB. sertaneja is oviparous. Females reach sexual maturity at a total length of about. Clutch size is 4–14 eggs.