The Collaborative International Dictionary of English v.0.48:

Numenius \Numenius\ prop. n.
   A genus of birds comprising certain of the curlews.

   Syn: genus Numenius.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Numenius
    n 1: curlews [syn: Numenius, genus Numenius]