Common tree snakes have moderately large eyes with an elongated head. They have a long, slender body with scales varying in color from brown to green, to sky blue. The scales often have white or blue speckles. Belly scales are usually cream to yellow but can also be a light blue. They can grow up to 1 – 2m in length.
These large, thick snakes can grow to over 3 metres in length and weigh up to 15kg. They have a large head covered in small fragmented scales. There are defined heat pits on the lower jaw with less defined pits on their upper lip and snout. Their colour can vary greatly, though they mostly look carpet-coloured.
Red-bellied black snakes are moderately built and can grow to an average length 1.5 to 2 meters. Blackheaded, often with a brown snout,a nd barely larger than its neck. There are glossy jet-black scales on its back with vibrant red to pink coloration running down its flanks. Belly scales are red to pink with black bands.
These are small, freshwater snakes that grows to average lengths of 60 -75 cm. Their colors range from any shade of gray, brown, and olive, with dark bands across the back. Belly scales are normally a cream to light salmon-pink. The most defining feature is keeled scales that cover most of the body, which makes it rough to the touch.