Enhydrina schistosa is slim, grayish white with inconsistent light blue markings. There is a large shovel-like scale under the lower jaw, and the skin on the head is slack, which can make the mouth wide.
Ordinary Enhydrina schistosa is very toxic, very dangerous, and has no degradable drugs.
It lives in the oceans of the Persian Gulf to the Philippines and northern Australia. It is very toxic, and the venom injected by it is enough to kill 50 people.