Source : Webster's Revised Unabridged Dictionary (1913)

Mugil \Mu"gil\, n. [L., a sort of fish.] (Zo["o]l.)
   A genus of fishes including the gray mullets. See {Mullet}.

Percesoces \Per*ces"o*ces\, n. pl. [NL., fr. L. perca a perch +
   esox, -ocis, a pike.] (Zo["o]l.)
   An order of fishes including the gray mullets ({Mugil}), the
   barracudas, the silversides, and other related fishes. So
   called from their relation both to perches and to pikes.

Source : WordNet®

Mugil
     n : type genus of the Mugilidae: mullets [syn: {genus Mugil}]