12 Lloyd's natural history. 



Afacacus ocreatus^ Ogilby, P. Z. S., 1840, p. 56 ; Sclaler, in 

 Wolf, Zool. Sketches, ii., pi. i. (1865); id., P. Z. S., 

 i860, p. 420, pi. Ixxxii. ; Anderson, t.c.^ p. 81 (pt.). 

 Macacus fusco-ater^ Schinz, Syn. Mamm. i., p. 58 (1844). 

 Macacus htornaftis, Gray, P. Z. S., 1866, p. 202, pi. xix. ; id., 

 Cat. Monkeys Brit. Mus , p. 129 (1870). 

 Characters. — Face narrow and elongated, nude, except for a 

 few short hairs on the upper lip ; nose flat ; ears rather long, 

 rounded, thinly haired ; hair on one side of the head forming 

 a somewhat large whisker ; groin, region external to the cal- 

 losities, and down the thighs thinly haired ; tail very short, 

 nude, curved upwards ; frontal band, face, and ears black ; 

 callosities and the surrounding parts thinly-haired; region of the 

 buttocks flesh-coloured ; hairs on the upper lip black ; whisker- 

 tufts black, with greyish tips ; rest of the head and body sooty- 

 black ; lower side of neck, rump, under surface of body, inside 

 of limbs, fore-arms, legs, and back of thighs grey ; tail, black. 

 Length of body, 21 inches; of tail, i inch. 



Young. — Greyish-black. 



In the skull the outer surface of the outer margin of the 

 orbits is flattened ; the nasal bones are short and expanded. 



This species is distinguished from 31. ardoides and M. 

 fuscatus^ by the colour of the face being black, instead of 

 bright red. 



Distribution. — This species, whose true home was for a long 

 time unknown, but was assumed to be Borneo, has been 

 certainly ascertained to be confined to the Southern Penin- 

 sula of Celebes, and to the neighbouring island of Bouton. 

 Dr. Anderson speaks of a Monkey from the Aru Islands, 

 far to the east of Celebes, " if not identical with M. mjurus, 



