_Cebus fallax_, Schl., Mus. Pays Bas, vii., p. 210 (1876).
CHARACTERS.--In colour closely resembling _C. fatuellus_, but the hair is
longer all over, silky, and of a dusky hue, especially on the hinder part
of the body. The lumbar vertebræ are four in number, and there are also
fourteen pairs of ribs.
DISTRIBUTION.--Unknown.