What is the name of the yellow venomous snake that lives on an island alone in the ocean?

It is a yellow, venomous snake. It is the only species of snake which lives on an island.

I don't know the name of the island. I don't know which state the island is close to.

All I know is that it is yellow, it is the only species of snake on that island, and it is very

venomous (deadly venomous). What is the name of the species of snake on that island?