The Collaborative International Dictionary of English v.0.48:

Enchodus \En"cho*dus\, n. [NL., fr. Gr. ? a spear + 'odoy`s,
   'odo`ntos, a tooth.] (Paleon.)
   A genus of extinct Cretaceous fishes; -- so named from their
   spear-shaped teeth. They were allied to the pike (Esox).
   [1913 Webster]