Helmets are medium sized venomous snakes. They are usually 60 cm in length and can grow up to 90 cm. They are black with irregular yellow markings. It is mainly distributed in southeastern Australia, inhabits coastal rocky areas, nocturnal, feeds on lizards and frogs, ovoviviparous, and produces 8-12 litters per litter.

The habitat of the helmeted snake has been destroyed by urbanization and illegal rock removal , the number has dropped off a cliff, and it has been included in the Appendix of the Convention on International Trade in Endangered Species of Wild Fauna and Flora since September 13, 2007, and there is basically no way to raise it domestically.