The Collaborative International Dictionary of English v.0.48:

Neritidae \Neritidae\ prop. n.
   A natural family comprising the neritids.

   Syn: family Neritidae.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Neritidae
    n 1: neritids [syn: Neritidae, family Neritidae]