thunderworm

Century Dictionary and Cyclopedia

1. n. An amphisbænoid lizard of Florida, Rhineura fioridana: so called as forced out of its burrows by a thunder-shower.

Wiktionary

1. n. A small burrowing snake-like lizard (Rhineura floridana) native to Florida.

GNU Webster's 1913

1. n. (Zoöl.) A small, footless, burrowing, snakelike lizard (Rhineura Floridana) allied to Amphisbæna, native of Florida; -- so called because it leaves its burrows after a thundershower.