amphisbaena

Am`phis*bæ"na, n. Etym: [L., fr. Gr. 1. A fabled serpent with a head at each end, moving either way. Milton. 2. (Zoöl.) Defn: A genus of harmless lizards, serpentlike in form, without legs, and with both ends so much alike that they appear to have a head at each, and ability to move either way. See Illustration in Appendix. Note: The Gordius aquaticus, or hairworm, has been called an amphisbæna; but it belongs among the worms.

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