40 SIMIID^. 



The young do not appear to differ much in colour from the adults. 



Ft. In. 

 Length of body to root of tail ........ 1 10'25 



„ of tail 2 4-75 



The skull of this remarkable animal is distinguished from the skulls of the 

 other Semnopitheci, by its highly arched, hut rather narrow, retreating forehead; 

 by the great breadth of its orbits, the little marked prominence or arching of the 

 interorbital space compared with that of the other crested species in which it is 

 narrower than in S. frontatm ; by its broad but short and truncated facial portion ; 

 and by the more retreating character and less depth of the symphysis of the 

 lower jaw. 



This species is at once recognised by the bare, milky-coloured, nude area on its 

 forehead, by its remarkable, blunt-shaped crest, and by the long dependent tufts 

 from the forehead and sides of the face. 



Inhabits Borneo. 



Semnopithectjs nemaeus, Linn. 



Le done, Buffon, Hist. Nat., vol. xiv. 1766, p. 298, pi. xxi. ; Suppl., vol. vii. 1789, p. 85, pi. vil. ; 



Audebert, Hist. Nat. des Singes, 1797, iv. Fam. Sect. i. pi. i. ; Latreille, Hist. Nat. de Buifon^ 



(Sonnini), vol. xxxvi. (1809), p. 65, pis. li. et lii. 

 The Cochin China Monkey, Penn. Hist. Quad. 3rd ed. 1793, vol. i. p. 211; Sbaw, Genl. Zool., 



vol. i. pt. i. pi. 23. 

 Si?nia nemaeics, Lin. Mantissa Plant., 1771, p. 521; Schreber, Saugeth, vol. i. 1775, p. 110, 



pi. xxiv. ; Gmelin, Linn. Syst. Nat., vol. i. (13 ed.) 1788, p. 31; Shaw, Genl. Zool., vol. i. 



pt. i. 1800, p. 56; P. Cuv. Diet, des Sc. Nat., vol. xx. 1821, p. 32. 

 Cercopithecus nemaens, Erxleben, Syst. R^g. An. 1777, p. 42. ; Zimm. Geograph. Gesch., vol. ii. 



1870, p. 194; Boddaert, Elench. An. 1785, p. 60; Desmarest, Nouv. Diet. d'Hist. Nat., 



vol. XV. 1817, p. 574; Kuhl. Beitr. zur. Zool., 1820, p. 8. 

 Fygaihrix nemaens, Geoff. St.-Hil. Ann. des Mus., vol. xix. 1812, p. 90. 

 Lasiopyga nemaeus, Desmarest, Mamm. 1820, p. 54; Lesson, Man. de Mamm., 1820, p. 39; 



Griffith, An. Kingd., vol. v. 1827, p. 8; Dahlbom, Stud. Zoo. Fam. Reg. An. 1856, p. 84; 



Gray, Cat. Monkeys and Lemurs, B. M. 1870, p. 13. 

 Semnopithecus nemaeus, P. Cuv. Hist. Nat. des Mammif., May 1825, pi. 14 ; Desmoulins, Diet. 



Class, d' Hist. Nat., vol. vii. 1825, p. 570; Cuv. Rfeg. An. (nouv. ed.) vol. i. 1829, p. 93; 



Fischer, Syn. Mamm. 1829, p. 13 ; Is. Geoff. St.-Hil. Zool. des voy. de Belanger, 1834, p. 



34; Waterhouse, Cat. Mamm. Mus. Zool. Soc. Lond., 2nd ed. 1838, p. 4; Martin, Charles- 

 worth's Mag. Nat. Hist., new. ser. vol. ii. 1838, p. 434; Nat. Hist. Quad., 1841, p. 459, 



fig. 283; Wagner, Schreber, Saugeth. Suj^pl. vol. i. 1840, p. 101 ; Suppl. vol. v. 1855, p. 35 ; 



Lesson, Sp. des Mammif., 1840, p. 55 ; Miiller und Schlegel, Verhandl. 1839-44, p. 62 ; 



Schinz, Syn. Mamm., vol. i, 1844, p. 43; Is. Geoff. St.-Hil. Cat. Method des Mammif., 1851, 



p. 12; Gervais, Hist. Nat. des Mammif., 1856, p. 60, pi. iii ; A. M. -Edwards, Rech. des 



Mammif., 1868-74, p. 243. 

 Fresbi/tes nemaeus, Blyth, Journ. As. Soc. Beng., vol. xliv. 1875, ex. no. p. 11. 



Upper surface of the body and sides greyish, passing into blackish on the fore- 

 head, and into black on the base of the neck, front of the breast, shoulder, brachium, 



