ule, however, is without its exception, for one adult
male, possessed by Blyth, is reported as having been an exceeding
gentle animal.

NO. 10. SEMNOPITHECUS _vel_ PRESBYTES BARBEI.
_The Tipperah Langur_.

HABITAT.--Tipperah, Tenasserim.

DESCRIPTION.--No vertical crest of hair on the head, nor is the
occipital hair directed downwards, as in the next species. Shoulders
and outside of arm silvered; tail slightly paler than body, "which
is of a blackish fuliginous hue."

More information is required about this monkey, which was named by
Blyth after its donor to the Asiatic Society, the Rev. J. Barbe. Blyth
considered it as distinct from _P. Phayrei_ and _P. obscurus_, which
last is from Malacca.

Dr. Anderson noticed it in the valley of the Tapeng in the centre
of the Kakhyen Hills, in troops of thirty to fifty, in high forest
trees overhanging the mountain streams. Being seldom disturbed, they
permitted a near approach.

NO. 11. SEMNOPITHECUS _vel_ PRESBYTES PHAYREI.
_Syn_.--SEMNOPITHECUS CRISTATUS.
_The Silvery-Leaf Monkey_ (_Blyth_).

HABITAT.--Arracan, Malayan Peninsula, Sumatra, Borneo.

DESCRIPTION.-Colour dusky grey-brown above, more or less dark, with
black hands and feet; a conspicuous crest on the vertex; under parts
white, scarcely extending to the inside of the limbs; sides grey like
the back; whiskers dark, very long, concealing the ears in front;
lips and eyelids conspicuously white, with white moustachial hairs
above and similar hairs below.

SIZE.--Two feet; tail, 2 feet 6 inches.

This monkey was named by Blyth after Captain (now Sir Arthur) Phayre,
who first brought it to his notice; but he afterwards reconciled it
as being synonymous with _Semnopithecus cristatus_. The colouring,
according to different authors, seems to vary considerably, which
causes some confusion in description. It differs from an allied
species, _S. maurus_, in selecting low marshy situations near the
banks of streams. Its favourite food is the fruit of the Nibong palm
(_Oncosperma filamentosa_).

NO. 12. SEMNOPITHECUS _vel_ PRESBYTES OBSCURUS.
_The Dusky-Leaf Monkey_.

HABITAT.--Mergui and the Malayan Peninsula.

DESCRIPTION.--Adults ashy or brownish black, darker on forehead,
sides of face, shoulder, and sides of body; the hair on the nape is
lengthened and whitish. The newly-born young are of a golden
ferruginous colour, which afterward changes to dusky-ash colour, the
terminal half of the tail being las