64 SIMIID^. 



* Macacus assamensis, M'Clelland. 



A supposed new monkey, Andr. Proe. Zool. Soc. Lond. 1872, p. 529 (figs. o£ skull). 



Macacus assamensis, M'Clelland, Proc.-Zool. Soc. Lond. 1839, p. 143; 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. sx. 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, RoyWs 111. Him. Bot. Mamm. 1840, p. 6 ; Madr. Journ. Lit. and Sc. 



vol. xii. 1840, p. 144. 

 Macacus {Pithex) pelops, Hodgson, Journ. As. Soc. Beng. vol. ix. 1840, p. 1213: Ihicl, 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, Schinz, 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. 

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

 Inuus (rhesus') assamensis, Wagner, Schreber, Saugeth. Suppl. vol. v. 1855, p. 57. 

 liiuus assamensis, Hutton, Journ. As. Soc. Beng. vol. xxxiii. 1864, Aj)pendix, 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 prohlemalicus. Gray, Cat. Monkeys and Lemurs, B. M. 1870, p. 128; Sclater, Proc. Zool. 



Soc. 1871, p. 222. 

 3Iacacns rheso-similis, Sclater, Proc. Zool. Soc. Lond. 1872, p. 495, PI. xxv. juv. 



The type of 31. assamensis in tlie 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 cbin 

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

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

 especially between the shoulders and the back of tbe neck, with yellowish, whicb 

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

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

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

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

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

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

 mouth, and below and behind tbe ears and on the chin, tbe hair is rather lono- and 

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

 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. 



