Historical reference: Do not rely on this information. It is very old. About this collection
Sea-Snake, any snake of the family Hydrophidae, from the Indian and Australian seas. The body is flattened, and the tail acts as a swimming organ and rudder. These snakes, some of which attain a considerable size, are intensely venomous, and feed chiefly on fish. When cast on shore, they are helpless and nearly blind.