The Filian python was a variety of burrowing snake.
When Odo encouraged an infant Founder to change its shape in 2373, he told the baby it could be anything, a Tarkalean hawk, soaring through the sky, or a Filian python, burrowing deep beneath the ground. (DS9: "The Begotten")
According to the script, Filian was pronounced as "FILLY-uhn". [1]
External link[]
- Filian python at Memory Beta, the wiki for licensed Star Trek works