Dwyer's snake, Whip snake, Variable black-naped snake
Dwyer's snake (Suta dwyeri) also known as the whip snake and the variable black-naped snake, is a species of venomous snake in the family Elapidae. The species is endemic to Australia, where it is found from New South Wales to South Queensland. While closely related to Australian sea snakes, P. dwyeri is a terrestrial reptile.
The specific name, dwyeri, is in honor of Australian herpetologist John Dwyer.
Adult S. dwyeri males average 31 cm (12 inches) in length from the tip of the snout to the uro-genital vent. Females are slightly smaller at around 29 cm (11 inches) in snout-to-vent length (SVL). S. dwyeri has a cylindrical brown body with a slender to medium build. The head is short and somewhat widened so as to be distinct from the neck. The tail is short as well, and the dorsal scales are smooth. The eye is medium-sized, with a vertically elliptical pupil.
Breeders of exotic reptiles advise letting pairs of S. dwyeri mate when they reach a length of about 23 cm (9.1 in) for males and 22 cm (8.7 in) for females. This species is viviparous rather than egg laying and successfully births about three offspring per brood. Newborn S. dwyeri young are about 13 cm (5.1 in) long.