_Midas nigrifrons_, Geoffr., Cat. Méth. Primates, p. 64 (1851).
_Midas flavifrons_, var. c. _Midas nigrifrons_, Gray, Cat. Monkeys Brit.
Mus., p. 67 (1870).
_Hapale nigrifrons_, Schl., Mus. Pays Bas, vii., p. 263 (1876).
{144}CHARACTERS.--Differs from _M. weddelli_ in having the fur washed with
rufous, and the hairs finely ringed.
DISTRIBUTION.--Unknown.