Quote Originally Posted by stangs13 View Post
Boas? The have live birth, but i don't know if the eggs hatch inside of them though.
Boas are ovoviviparous. I found this site that says that snakes can only be oviparous or ovoviviparous. I personally have never heard of a true viviparous snake.

EDIT: A more reliable source, thank God! Bottom of left column.