15. Black Tiger Snake (Notechis ater niger)
LD50: 0.131
Notechis ater niger ranks 15th in our list of the 20 most venomous snakes in the world. Black Tiger Snake is a subspecies of tiger snakes that inhabits southern and western parts of Australia, also Tasmania and Bass Strait Islands. It dwells in marshland and coastal areas, which is a bit drier habitat than the one inhabited by other tiger snakes. It is darkly colored – dark brown on the dorsal (back) side, and slightly lighter on the ventral side (belly). It is considered one of the most venomous species in Australia.
