The Collaborative International Dictionary of English v.0.48:

Durukuli \Du`ru*ku"li\, n. (Zool.)
   A small, nocturnal, South American monkey of the genus
   Aotus (formerly Nyctipthecus trivirgatus). The owl
   monkey. See douroucouli. [Written also douroucouli.]
   [1913 Webster]