Drysdalia rhodogaster, also known as the mustard-bellied snake or Blue Mountains crowned snake, is a species of venomous snake endemic to Australia. The specific epithet rhodogaster (“red-bellied”) refers to body colouration.
The snake grows to an average of about 40 cm in length. The upper body is brown to grey, with a darker head and a yellow to orange band over the nape.[1]
The species is viviparous, with an average litter size of five. Its diet consists mainly of lizards.[1]
The species’ distribution is limited to south-eastern New South Wales.[1]