64 SIMIID^. 



* Macacus assamensis, M'Clelland. 



A supposed new monkey^ Andr. Proc. Zool. Soc. Lond. 1872^ p. 529 (figs, of skull). 



Macacus assamensis, M'Clelland, Proc. Zool. Soc. Lond. 1839, p. 148 ; Walker, Cal. Journ. Nat. Hist. 



vol. ii. 1842, p. 265 ; Schinz, Syn. Mamm. vol. i. 1844, p. 57; Blyth, Journ. As. Soc. Beng. 



1844, vol. xiii. p. 476 ; Ann. and Mag. Nat. Hist. vol. xx. 1851, p. 313; Cat. Mamm. Mus. 



As. Soc. Beng. 1863, p. 8; Horsfield, Cat. Mamm. E. Ind. Co. Mus. 1851, p. 21; Sclater, 



Proc. Zool. Soc. 1868, p. 566; Ibid, 1871, p. 222; Blyth, Journ. As. Soc. Beng. vol. xliv. 



1875, ex. no. p. 5. 

 Papio assamensis, Ogilby, Royle^s 111. Him. Bot. Mamm. 1840, p. 6 ; Madr. Journ. Lit. and Sc. 



vol. xii. 1840, p. 144. 

 Macacus [Tithex) pelops, Hodgson, Journ. As. Soc. Beng. vol. ix. 1840, p. 1213; Ibid, vol. x. 



p. 908; Cal. Journ. Nat. Hist. vol. ii. 1842, p. 212; Ann. and Mag. Nat. Hist. vol. viii. 



1842, p. 315 ; Cal. Journ. Nat. Hist. vol. iv. 1844, p. 285. 

 Macacus pelops, Scbinz, Syn. Mamm. vol. i. 1844, p. 60; Gray, Hodgson, Coll. Nepal, Mamm. &c. 



1846, p. 2; Blyth, Ann. and Mag. Nat. Hist. vol. xx. 1851, p. 313; Gray, Cat. Monkeys 



and Lemurs (in part), 1870, p. 30. 

 Inmis (rhesus) pelops, Wagner, Schreber, Siiugeth. Suppl. vol. v. 1855, p. 56. 

 luuus {rhesus) assamensis, Wagner, Schreber, Saugeth. Suppl. vol. v. 1855, p. 57. 

 Inuus assametisis, Hutton, Journ. As. Soc. Beng. vol. xxxiii. 1864, Appendix, p. xiii. 

 Inuus pelops, Hutton, Journ. As. Soc. Beng. vol. xxxiii. 1864, Appendix, p. xiii. ; Jerdon, Mamm. 



Ind. 1867, p. 11 ; Blyth, Journ. As. Soc. Beng. vol. xliv. 1875, ex. no. p. 6. 

 Macacus problematicus , Gray, Cat. Monkeys and Lemurs, B. M. 1870, p. 128; Sclater, Proc. Zool 



Soc. 1871, p. 222. 

 Macacus rheso-simUis, Sclater, Proc. Zool. Soc. Lond. 1872, p. 495, PI. xxv. juv. 



The type of M. assamensis in the Indian Museum, London, is an adult male. 

 It is a stuffed specimen, but the skull has been removed from the skin and is not in 

 the Museum. This monkey differs from all adult examples of the common monkey 

 of the plains of India which have come under my observation in the anterior half 

 of the body wanting the ashy tint which is so characteristic of the adults, and in 

 the hinder portion of the body being in no way rufous. The fur, too, is almost 

 completely devoid of annulations, and the hair around the face and on the chin 

 is longer than in animals from the plains. The general colour of this old specimen 

 may be described as brown, washed over the outer side of the fore-limbs, and more 

 especially between the shoulders and the back of the neck, with yellowish, which 

 appears in certain lights as a pale golden, passing on the upper surface of the 

 head into a pale-yellowish brown. The general brownish tint is darkest on the 

 flanks, where it has a fuliginous tinge, and down the front margin of the fore-limbs, 

 over the outer surface of the thighs, the dorsi of the feet and on the tail! 

 The inside of the limbs and the under surface generally are much paler than the 

 upper parts, and have a yellowish tint, inclining to grey. Behind the angle of the 

 mouth, and below and behind the ears and on the chin, the hair is rather long and 

 nearly of the same colour as the under surface, but slightly tipped with blackish. 

 There is a moderately dense line of rather long supraorbital hairs with a pencil 

 of similar hairs extending backwards from the external orbital angle of the frontals. 



