_Callithrix cinerascens_, Spix, Sim. et Vespert. Bras., p. 20, pl. 14
(1823).
_Callithrix donacophilus_, d'Orb., Voy. Amér. Sud, iv., p. 10, pl. 5
(1826); Gray, Cat. Monkeys Brit. Mus., p. 55 (1870).
_Callithrix donacophila_, Geoffr., Cat. Méth. Primates, p. 41 (1851);
Schl., Mus. Pays Bas, vii., p. 240 (1876).
{162}CHARACTERS.--Fur long and similar in character to that of _C.
torquata_; chest and under side of body pale grey or dark reddish-grey;
hands and feet grey; back of the same colour; tail mottled grey,--the hairs
being grey, with black tips.
In some species the fur varies from dark grey washed with rufous, to almost
white, the red wash, where it occurs, sometimes deepening, or almost
vanishing.
DISTRIBUTION.--Mr. Bates observed this species at Serra dos Parentins, in
the Lower Amazon Region above the confluence of the Tapajos with the
Amazon. It also extends to Bolivia and Peru.