HYLO BATES. 9 



Hylobates agilis, r. Cuv. 



The Ounko, F. Cuv. Hist. Nat. des Mammif. June 1824, pis. vii;, viii. 



Fithecus lar, GeofF. St.-Hil. Ann. du Mus. vol. xix. 1812, p. 88. 



RylohaUs agilis, F. Cuv. Hist. Nat. des Mammif. Sept. 1821, pis. v, vi; F. Cuv. Diet, des Sc. Nat. 

 vol. xxxvi. ] 825, p. 288 ; Lesson, Man. de Mamm. 1827, p. 31 ; Temm. Monogr. de Mamm. vol. i. 

 1827, p. 13; Griffith, An. King. vol. v. 1827, p. 7 ; G. Cuv. Reg. An. nouv. ed. 1829, vol. i. 

 p. 90 ; Yarrell, Zool. Journ. vol. v. 1835, p, 137 ; Miiller, Tijdsch. voor Natuur. Gesch. en Phys. 

 vol. ii. 1835, p. 326 ; Waterbouse, Cat. Mamm. Mus. Zool. Soc. Lond. 1838, 2nd ed. p. 3 ; 

 Blyth, Journ. As. Soc. Beng. vol. x. 1841, p. 838; vol. xiii. 1844, p. 465; vol. xliv. 1875, 

 ex. no. p. 3; Cat. Mamm. As. Soc. Mus. 1863, p. 5; Martin, Nat. Hist. Quad. 1841, pp. 416, 

 417, 425 (plate) ; Gray, Hand-list Mamm. B. M. 1843, p. 2; Muller und Schlegel, Verhand. 

 1839-44, p. 48; Cantor, Journ. As. Soc. vol. xv. 1846, p. 173; Fry, Proc. Zool. Soc. 1846, 

 p. 11; Ann. & Mag. Nat. Hist. vol. xvii. 1846, p. 484; Is. Geoff. St.-Hil. Cat. Method, des 

 Mammif. 1851, p. 7; Gervais, Hist. Nat. des Mammif. 1854, p. 53 (figure) ; Dahlbom, Stud. 

 ' Zool. Fam. Reg. An. 1856, pp. 74, 78, pi. iii. fig. 9 (clavicle); Gray, Cat. Monkeys and 

 Lemurs, B. M. 1870, p. 12. 



Fithecus agilis, Desmarest, Mamm. 1820, p. 532.^ 



Simia lar, Raffles, Trans. Linn. Soc. vol. xiii. 1822, p. 242 ; Vigors & Horsfield, Zool. Journ. vol. iv. 

 1828-29, p. 106; Fischer, SyTi. Mamm. 1829 (in part), p. 12. 



Eylohates lar, F. Cuv. Hist. Nat. des Mamm. June 1824, pis. 7, 8; Diet, des Sc. Nat. vol. xxxvi. 

 1825, p. 289; Lesson, Man. de Mamm. 1827, p. 30; Griffith, An. King. vol. v. 1827, p. 5; 

 Bory de St. Vincent, Diet. Class. d'Hist. Nat. vol. xii. 1827, p. 284; Is. GeofF. St.-Hil. Cours de 

 FHist. Nat. des Mammif 1829, p. 33 ; G. Cuv. Reg. An. nouv. ed. vol. i. 1829, p. 90 ; Schlegel, 

 Essai sur la Physion. des Serpens, Pt. Gen. 1837, p. 237. 



Eylohates variegatus, Temminck, Monogr. de Mamm. vol. i. 1827, p. xiii ; Miiller, Tijdschr. voor 

 Natuur. Gesch. en Phys. vol. ii. 1835, p. 326 ; Wagner, Schreber, Saugeth. Suppl. vol. i. 1840, 

 p. 74; Lesson, Sp. des Mammif. 1840, p. 52; S. Miiller, Verhandl. over de Zool. van den 

 Indisch. Arch. 1841, p. 15; Miiller, Verhandl. 1839-44, p. 47; Horsfield, Cat. Mamm. E. Ind. 

 Co. Mus. 1851, p. 3; Wagner, Schreber, Saugeth. Suppl. vol. v. 1855, p. 16. 



Hi/lobates rafflei, Gqo^. ^i.-lliX. Cours de FHist. Nat. des Mammif. 1829, p. 34; Zool. du Voyage 

 de Belanger, 1834, p. 28; Compt. Rend. vol. xv. 1842, p. 716; Arch, du Mus. vol. ii. 1843, 

 p. 535 ; Miiller, Tijdschr. voor Natuur. Gesch. en Phys. vol. ii. 1835, p. 326 ; Miill. und Schlegel, 

 Verhandl. 1839-44, p. 48 ; Wagner, Schreber, Saugeth. Suppl. vol. i. 1840, p 73. 



Hylobates unho. Lesson (in part) Sp. des Mammif. 1840, p. 53. 



Hylobates raffiesii. Is. Geoff. St.-Hil. Cat. Method, des Mammif. 1851, p. 8; Gervais, Hist. Nat. des 

 Mammif. 1854, p. 53 (fig. of head); Dahlbom, Stud. Zool. Fam. Reg. An. 1856, pp. 74, 80; 

 Gray, Cat. Monkeys and Lemurs, B. M. 1870, p. 11. 



The occiput, the back from immediately behind the shoulders, the flanks, the 

 hips, and the outer surfaces of the fore and hind limbs, pale yellow. The shoulders, 

 chest, and belly, and the inside of the limbs and feet, dark brown. The eyebrows 

 and whiskers pale greyish. A few reddish hairs in the region of the genitalia. 



Animals presenting the foregoing characters constitute the " Ungka puti," or 

 S. agilis, E. Guv. ; but the Gibbons which are distinguished by the following parti- 

 culars, and which are known to the natives as " Ungka etam" {E. rafflesii, Geoff.), 

 appear to be only a dark variety of S. agilis. 



The type of this variety, which I have carefully compared with that of JH. agilis, 



1 From the circumstance that Desmarest quotes F. Cuvier as the first zoologist to recognise this species, it is evident that 

 the " Mammologie," although dated 1820, did not appear before September 1821. 



B 



