tamarin

from WordNet (r) 3.0 (2006)

tamarin
    n 1: small South American marmoset with silky fur and long
         nonprehensile tail [syn: {tamarin}, {lion monkey}, {lion
         marmoset}, {leoncita}]

from The Collaborative International Dictionary of English v.0.48

Tamarin \Tam"a*rin\, n. [From the native name in Cayenne.]
   (Zool.)
   Any one of several species of small squirrel-like South
   American monkeys of the genus {Midas}, especially {Midas
   ursulus}.
   [1913 Webster]
   [1913 Webster]