The Saki, (_fig. 216._) commonly called the _Fox-tailed Monkey_, from
its tail being cloathed with very long hair, is the largest of the
sagoins, being above seventeen inches long when full grown, whereas
the largest of the other five species is not above nine or ten. The
saki has very long hair on its body, and still longer on its tail: its
face is red, and covered with a whitish down: it is easy to be known
and distinguished from every other sagoin, sapajou, or monkey, by the
following characters:
_Distinctive Characters of this Species._
The saki has neither pouches on the sides of his jaws, nor callosities
on his posteriors. His tail is not prehensile but flaccid, and half
as long again as his head and body. The apertures of the nostrils are
placed on the side of the nose, and the partition is very thick. The
face is brown, and covered with a fine short, whitish down. The hair
on the upper parts of the body is of a deep brown, and those of the
lower of a reddish white. The hair is very long on the body, and still
longer on the tail, extending near two inches beyond the point; this
hair on the tail is generally of a deep brown colour. There seems to be
a variety in this species with respect to colour, as there are sakis to
be met with whose hair is of a reddish yellow colour. This animal goes
on all fours, and is about a foot and an half long, from the tip of the
nose to the insertion of the tail. The females of this species have not
the periodical emanation.