Rhinoceros ratsnake
 The rhinoceros ratsnake (Rhynchophis boulengeri) also known as rhinoceros snake rhino rat snake Vietnamese longnose snake and green unicorn is a ratsnake found from Northern Vietnam to Southern China. It has a prominent distinctive scaled protrusion on the front of its snout which has led to its common naming after mythical unicorns and some species of rhinoceros. This species is named for Belgian-British biologist George Albert Boulenger.