Maw

A Maw is an enemy in The Binding of Isaac: Rebirth. It attacks by slowly drifting towards Isaac while spitting a blood shot at him each time it's near him, the latter behavior being similar to that of Horfs.

Red Maw
The Red Maw has a mouth that is sewn shut so that it's implied to be unable to fire blood-shots, therefore simply chasing the player. However, the Red Maw floats considerably faster than the Maw. Upon death, it will fire 4 blood shots in cardinal directions, similar to Suckers.

Psychic Maw
The Psychic Maw is instantly recognized by the purple flame on its third eye. It fires purple homing shots and has an Eternal Fly circling it.