The Collaborative International Dictionary of English v.0.48:

Malacanthidae \Malacanthidae\ prop. n.
   A natural family of short-headed marine fishes which are
   often brightly colored.

   Syn: family Malacanthidae.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Malacanthidae
    n 1: short-headed marine fishes; often brightly colored [syn:
         Malacanthidae, family Malacanthidae]