AY LOBAT ES 167 
Hylobates leuciscus Kuhl, Beitr. Zool., 1820, p. 6; Desm., Mamm., 
1820, p. 51; F. Cuv., Dict. Scien. Nat., XXXVI, 1825, p. 289; 
Less., Man. Mamm., 1827, p. 31; Griff., Anim. Kingd., V, 
1827, p. 6; E. Geoff., Cours Hist. Nat. Mamm., 1828, p. 34, 
7me Lecon; Fisch., Syn. Mamm., 1829, p. 12; G. Cuv., Régn. 
Anim., I, 1829, p. 90; I. Geoff., Bélang., Voy., Zool., 1834, p. 
26; Miull., Tijdsch. Natuur. Geschied., II, 1835, p. 327; 
Schleg., Essai Phys. Serp., Pt. Gen., 1837, p. 237; Waterh., 
Cat. Mamm. Mus. Zool. Soc. Lond., 1838, p. 4; Wagn., 
Schreb., Saugth. Suppl., I, 1840, p. 78, pl. III B; V, 1855, p. 
17, (Part.) ; Miill., Verhandl., 1839-44, p. 15; Less., Spec. 
Mamm., 1840, p. 51; Martin, Mammif. Anim., 1841, pp. 416, 
417, 436; I. Geoff., Compt. Rend., XV, 1842, p. 716; Id. Cat. 
Primates, 1851, p. 7; Id. Archiv.. Mus. Hist. Nat., Paris, 
1852, p. 534; Schinz, Syn. Mamm., I, 1842, p. 31; Gray, 
. Handb. Mamm. Brit. Mus., 1843, p. 2; Blyth, Journ. Asiat. 
Soc. Beng., XIII, 1844, p. 465; XLIV, 1875, p. 4, ext. no. ; Jd. 
Cat. Mamm. Mus. Asiat. Soc. Beng., 1863, p. 5; Cantor, Journ. 
Asiat. Soc. Beng., XV, 1846, p. 173; Gerv., Hist. Nat. Mamm., 
I, 1854, p. 53, fig.; Dahlb., Stud. Zool. Fam. Reg. Anim. 
Nat., fasc. I, 1856, p. 73; Reichenb., Vollstand. Naturg. Affen, 
1862, p. 174, figs. 446-449; Gray, Cat. Monkeys, Lemurs and 
Fruit-eating Bats, Brit. Mus., 1870, p. 15; Forbes, Nat. 
Wander. E. Archip., 1875, p. 70; Schleg., Mus. Pays-Bas, 
Simia, 1876, p. 19; Anders., Zool. Res. Exped. Yunnan, 1878, 
p. 7; Id. Cat. Mamm. Ind. Mus. Calc., 1881, p. 33; Thos., 
Proc. Zool. Soc. Lond., 1892, p. 227; 1893, p. 494; Forbes, 
Handb. Primates, II, 1894, p. 154; Elliot, Cat. Mamm. Field 
Columb. Mus., F. C. M. Pub., VIII, 1906, p. 575, Zool. Ser. ; 
Thos. and Wrought., Proc. Zool. Soc. Lond., 1909, p. 372. 
Hylobates javanicus Matschie, Sitzungsb. Ges. Naturf. Freunde, 
Berlin, 1893, pp. 62, 210. 
WAU-WAU GIBBON. 
Type locality. None given. 
Geogr. Distr. Java. 
Color. Uniformly, gray, top of head blackish occasionally. 
Measurements. Skull: occipito-nasal length, 85 ; Hensel, 66; zygo- 
matic width, 62; intertemporal width, 44; median length of nasals, 10; 
length of upper molar series, 24; length of mandible, 64; length of 
lower molar series, 27. juv. 
