Ateles paniscus

from The Collaborative International Dictionary of English v.0.48

Coaita \Co*ai"ta\ (k[-o]*[aum][i^]"t[.a]), n. (Zool.)
   The native name of certain South American monkeys of the
   genus {Ateles}, esp. {Ateles paniscus}. The black-faced
   coaita is {Ateles ater}. See Illustration in Appendix.
   [1913 Webster]