[Native name.] A South American monkey of the genus Pithecia, esp. the white-headed saki, P. leucocephala.
1834. H. MMurtrie, Cuviers The Animal Kingdom, 48. Simia pithecia, L. (The Yarke.) Blackish; circumference of the face whitish.
1855. Dalton, Brit. Guiana, II. 449. The yarkee is the name given by some to the white-faced Saki.