The Collaborative International Dictionary of English v.0.48:

Mallotus \Mal*lo"tus\, n. [NL., fr Gr. ? fleecy.] (Zool.)
   A genus of small Arctic fishes. One American species, the
   capelin (Mallotus villosus), is extensively used as bait
   for cod.
   [1913 Webster] Mallow

WordNet (r) 3.0 (2006):

Mallotus
    n 1: capelins [syn: Mallotus, genus Mallotus]