MAMMAL SURVEY OF INDIA, BURMA AND CEYLON. 701 



(4) Presbytis obsctjkus, Reid. 

 The Dusky Leaf -Monkey . 



1837. Semnopithecus obscurus, Reid, P. Z. S,, p. 14. 



1888. Semnopithecus obscurus, Blanford, Mammalia No. 24. 



6*6, $12, Bankachon ; J 2, Tenasserim ; Jl, Thaget. 



This is a dark coloured Langur. Brownish black above, paler on the 

 shoulders and forearms, tail silver-grey. Under side, hind limbs and crown 

 of the head greyish-white, hands and feet black. 



In his synonymy Blanford says Reid gave no description but this is in- 

 correct. The full passage referred to is as follows : — " Mr. James Reid 

 exhibited to the Meeting, and characterised as new, under the name 

 obscurus, a dark-coloured monkey, from the Society's Collection, belonging 

 to the Genus Semnopithecus. The locality of the particular specimen before 

 the Meeting was unknown. " This is technically a ' good ' description if 

 the name can be assigned, on reasonable evidence, to the animal in 

 question. (There are two specimens in the National Collection, either of 

 which might be the type, but I have failed, in spite of careful enquiry, to 

 obtain any history which would connect either of them with Reid's speci- 

 men.) However in the following year Martin, Superintendent of the 

 Museum of the Zoological Society, published a Monograph of the Genus 

 Semnopithecus (Charlesworth's Mag. Nat. Hist., II, p, 434) in which he in- 

 cludes ^' S. obscurus, Reid. " He says: " This Species was lately described 

 as new at the scientific meeting of the Zoological Society, 1837 ", and 

 gives an unmistakeable description of the present animal. There can 

 be no doubt that the present animal is Reid's obscurus and the name must 

 stand on his authority. 



" Almost as plentiful as S. lar, but a much less noisy animal. Its alarm 

 note is almost like that of a Macaque, and quite unlike the curious hoot of 

 the Indian Langurs. It is rather shy and keeps well within the thickest 

 jungles. 



The white orbital regions and the pinkish-white round the mouth are as 

 in phayrei, except that the orbits are not bluish but rather dead white, and 

 do not surround but extend in semi-circles round the upper and outer 

 margins of the eyes only. The area round the mouth is also less clearly 

 defined, being often mottled round its edges. The hair on the crown, 

 though long and very silky, does not form a true crest. The newly born 

 young are bright golden yellow in colour, in rare cases this colour is 

 retained through life. 



Weight.— 6 , 19i lbs., $ , 19 lbs. 



Vernacular names. — Lutong, Ltjtong-laboo (Malay, Bankachon). " 

 — G.O.S. 



(5) Peesbyxis pbmokalis keatii, Rob. and Kl. 

 Keafs Leaf Monkey. 



1830. Semnopithecus femoralis, Horsf ., App., Life of Sir T. S. Raffles (no 



description). 

 1833. Semnopithecus femoralis, Martin, Charlesworth's Mag., N, H., II, 



p. 436. 

 1876. Semnopithecus neglectus, Schlegel, Mus. Pays. Bas., XII, p. 47. 

 1888. Semnopithecus femoralis, Blanford, Mammalia No. 25. 

 1911. Presbytis neglecta keatii, Robinson and Kloss, Journ. Fed. Mai. 



St. Mus., IV, p. 174. 

 d 3, $ 1, Bankachon. 



