_Semnopithecus obscurus_ (nec Reid), Blyth, J. A. S. Beng., xiii., p. 466
(1844).
_Presbytis phayrei_, Blyth, _op. cit._, xvi., p. 733, pl. xxxvii., fig. 3
(1847); Wagner in Schreb. Säugeth. Suppl. v., p. 28 (1855); Tickell, J.
A. S. Beng., xxviii., p. 428 (1859).
_Semnopithecus argentatus_, Blyth in Horsf. Cat. Mamm. E. I. Co. Mus., p.
7 (1851).
_Presbytis cristatus_, Raffl. apud Blyth, Mamm. Burma, p. 9 (nec
Raffles).
_Semnopithecus rubicundus_, var. _C._, Gray, Cat. Monkeys Brit. Mus., p.
17 (1870).
{132}_Semnopithecus phayrei_, Anderson, Zool. Res. Exped. Yun-nan, p. 34
(1878); id., Cat. Mamm. As. Soc. Beng., p. 49; Schl., Mus. Pays-Bas,
vii., p. 33 (1876); Blanford, Faun. Brit. Ind., Mamm., p. 39 (1891).
CHARACTERS.--Top of the head with a peaked longitudinal crest; hair of
crown not radiating, but elongated and directed backward; whiskers long and
outwardly directed, partly covering the ears; back, sides, fore-arm, hands
and fore part of the feet blackish-brown, the middle of the back washed
with yellowish; the chin, chest, and under surface of the body pale yellow;
inside of the fore-arm and thighs brown; face livid, but the eyelids, lips,
and a ring round the eyes, white, flushed with flesh-colour; length of
body, 18½ inches; tail, 21½ inches.
Supra-orbital ridges of the skull not prominent, the occipital region
vertical; facial region sloping downward.
The Babu Ram Bramha Lányal, writing in July, 1893, from the Zoological
Gardens, Calcutta, to Dr. Sclater, says: "I am not aware whether closely
allied species of _Semnopitheci_ have ever inter-bred anywhere. They are
rather exclusive in their ideas in respect to matrimonial relationship.
Anyhow, such an event has just happened in this Garden. The Phayre's
Langur, or as it is often called, Phayre's Leaf Monkey (_Semnopithecus
phayrii_, Blyth) has given birth to a young one--a lovely little babe, of a
delicate light orange colour. As there has been no other male in the same
cage except the _S. cristatus_, there is no doubt of the young one being a
hybrid between these two species. These Monkeys have been living together
since 1880, and although they agreed very well, they were never observed to
be over friendly. Even now the male does not appear to take any interest in
the offspring."
DISTRIBUTION.--Confined, as far as is known, to Aracan.
{133}XXIII. RUTLEDGE'S LANGUR. SEMNOPITHECUS RUTLEDGII.
_S. rutledgii_, Anderson, Zool. Res. Exped. Yun-nan, p. 38 (1878).
CHARACTERS.--Head with a very well-defined erect median compressed crest;
frontal hairs not projecting over the face. General colour black, the hairs
tipped with lustrous grey on the head, crest, trunk, and limbs. Hands and
feet black. Under surface paler and the hairs more tipped with grey; tail
black above, yellow below, tipped with grey; whiskers long, backwardly and
upwardly divided, and broadly tipped with yellowish-grey; beard greyish;
face bluish-black. Length, 17 inches; tail, 24½ inches. (_Anderson._)
DISTRIBUTION AND HABITS.--Unknown.