SnakeHead fish, also known as fishzila can survive for upto 4 days out of water.
The
snakeheads are members of the freshwater perciform fish family
Channidae, native to Africa and Asia. These elongated, predatory fish
are distinguished by a long dorsal fin, large mouth and shiny teeth.
They breathe air with gills as well as with suprabranchial organs
developing when they grow older, which is a primitive form of a
labyrinth organ. The two extant genera are Channa in Asia and Parachanna
in Africa, consisting of 30 to 35 species.