Most venomous marine snake
Dubois' seasnake, Aipysurus duboisii
Not Applicable ()

The Dubois' seasnake (Aipysurus duboisii), found around Papua New Guinea, New Caledonia and the northern, eastern and western coastal areas of Australia is the most venomous sea snake. With an LD50 of 0.044 mg/kg this makes A. duboisii not only the most venomous sea snake but also one of the top three most venomous snakes in the world, together with Inland Taipan (Oxyuranus microlepidotus, LD50=0.025 mg/kg) and the Eastern Brown Snake (Pseudonaja textilis, LD50=0.0365 mg/kg).