Red-Bellied Black Snake
Now, while its venom is indeed capable of inflicting drastic morbidity, a bite isn’t generally fatal and is also much less venomous than any other Australian elapid snake. As one of Australia’s best-known snakes, it can be found in the woodlands, forests, and swamplands of eastern Australia.
Water Moccasin (Agkistrodon piscivorus)
Other common names are swamp moccasin, black moccasin, cottonmouth, gaper, or viper. Most noteworthy here is that this particular snake is the ~only~ semiaquatic snake to exist. Meaning that it can live and hunt both on land and underwater. The Agkistrodon piscivorus is found in southeastern United States.