galley-worm
Gal"ley-worm`, n. Etym: [Prob. so called because the numerous legs along the sides move rhythmically like the oars of a galley.] (Zoöl.) Defn: A chilognath myriapod of the genus Iulus, and allied genera, having numerous short legs along the sides; a milliped or "thousand legs." See Chilognatha.