What is "common death adder"

n. A species of death adder from Australia, taxonomic name (taxlink Acanthophis antarcticus species noshow=1), known for its venomosity and speed.

The common death adder (Acanthophis antarcticus) is a species of death adder native to Australia. It is one of the most venomous land snakes in Australia and globally. While it remains widespread (unlike related species), it is facing increased threat from the ongoing Australian cane toad invasion.