资料来源 : Webster's Revised Unabridged Dictionary (1913)

Selachostomi \Sel`a*chos"to*mi\, n. pl. [NL. See {Selachii}, and
   {Stoma}.] (Zo["o]l.)
   A division of ganoid fishes which includes the paddlefish, in
   which the mouth is armed with small teeth.