Board Thread:Suggestions Forum/@comment-25604636-20150107161017/@comment-25947183-20150111194025

Bilbo or Frodo or someone talks about fighting Were-Worm things in The Last Desert(probably just hobbit folklore and legend though). Though it was probably referencing to Rhûn. Also I read in one of the guides to tolkien that you can get dragons that breath fire called fire-drakes and non-fire-breathing dragons called cold-drakes.

You can find cold-drakes and fire-drakes with wings and without wings(non-winged are called worms)(I also read in one of the guides to tolkien(a book not written by tolkien but tells you about tolkiens world) that you get worms or non-winged dragons with no legs, but I do not know if tolkien wrote that though)