_Simia oedipus_, Linn., Syst. Nat., i., p. 41 (1766); Audeb. Singes, Fam.
vi., Sect, ii., pl. iv fig. 2. (1727).
_Midas oedipus_, Geoffr., Ann. Mus., xix., p. 122 (1812).
_Oedipus titi_, Gray, Cat. Monkeys Brit. Mus., p. 65 (1870).
_Hapale oedipus_, Schl., Mus. Pays Bas, vii., p. 258 (1876).
CHARACTERS.--Face and sides of head nearly naked; top of head with large,
erect, crest; hair of neck elongated; tail not ringed.
General colour greyish-brown; outside of limbs and base of tail, washed
with rusty-red; crest, throat, and lower surface of body, fore-limbs and
front edge of hind-limbs white; extremity of the tail black.