The Collaborative International Dictionary of English v.0.48:

Sphyraenoid \Sphy*rae"noid\, a.[L. sphyraena a kind of sea fish
   (Gr. sfy`raina) + -oid.] (Zool.)
   Of or pertaining to the Sphyraenidae, a family of marine
   fishes including the barracudas.
   [1913 Webster]