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

Community content is available under CC-BY-NC unless otherwise noted.