How to Identify the Common Death Adder (Identification Guide)

Key identifying features

The Common Death Adder (Acanthophis antarcticus) is unusual among Australian elapids for its viper-like body shape: short, thick, and stout, rather than long and slender. This unique build, combined with a triangular head and a thin, worm-like tail tip, makes it one of the more visually distinctive snakes to identify once the key features are known.

Coloration & pattern

Coloration is variable but generally consists of alternating bands of reddish-brown, grey, or brownish-black across the back, separated by narrower, paler bands of cream, tan, or light grey. The banding pattern can appear crisp and well-defined or somewhat blotchy and irregular depending on the individual and region. The belly is typically pale cream or whitish, sometimes with dark mottling.

Head, eyes & scales

The head is broad, flattened, and strongly triangular, distinct from the narrow neck, a shape more typical of vipers than of most Australian elapids. The eyes have vertically elliptical pupils, another vipera-like feature that stands out from other local snakes with round pupils. Body scales are keeled (ridged) rather than smooth, giving the skin a rougher, more textured appearance than many other elapids.

Size & body shape

This is a short, stocky snake, with adults usually reaching only 60 to 100 centimeters in length, but with a body girth disproportionately thick for that length. The tail ends in a slender, curled, worm-like tip that contrasts with the thicker body and is a hallmark identification feature, used by the snake to twitch and lure prey while the rest of the body stays still.

Range & habitat where you'll see it

The Common Death Adder is found across coastal and near-coastal eastern and southern Australia, inhabiting woodland, heath, and leaf litter in forested areas. It is a sedentary ambush species, often lying motionless and partially camouflaged among leaf litter, so it may be difficult to spot even when nearby.

How to tell it apart from look-alikes

The combination of a short, thick, viper-like body, triangular head, vertical pupils, keeled scales, and thin worm-like tail tip separates the Common Death Adder from virtually all other Australian snakes, most of which are longer, slimmer, smooth-scaled, and round-pupiled. Similar Acanthophis species (such as the Desert Death Adder) overlap in shape but differ in range and subtle pattern details, and precise species-level identification within the death adder group often requires close examination or regional knowledge rather than color alone.