SYNOPSIS OF THE SIMIADJE. 247 



forests of Borneo and Eastern Asia. Most probably the 

 Pongo. 



GENUS III. Hylobales, ILLIGER. 



Muzzle short ; head round ; facial angle 60 ; canine teeth 



longer than the others ; arms very long, reaching to the ground ; 



tail and cheek-pouches wanting ; with or without naked callosities. 



PLATE III. 1. H. HOOLOCK, the Hoolock Simia hoolock, 



Harl. Trans, of Am. Phil Soc. Hair deep chocolate 



brown ; face surrounded with a pale circle, most distinct 



on the forehead ; no callosities. Inhabits Goalpara. 



2. H. LAR, Common Gibbon Simia lar, Linn. Pithecus 

 lar, Geoff. Ann. du Mus. xix. p. 88 ; Desm. Mamm. 

 p. 50. Hair black ; the face surrounded with gray ; small 

 callosities on the buttocks. Inhabits Eastern India, parti- 

 cularly Coromandel, Malacca, and the Moluccas. 



3. H. ALBIMANA,* White-handed Gibbon Simia albimana, 

 Vig. and Horsf. Zoo/. Jour. No. xiii. p. 1 07. Hair black ; 

 the face surrounded with gray ; the four hands whitish. 

 Inhabits Sumatra. 



4. H. VARIEGATUS, Little Gibbon Pithecus variegatus, Geoff. 



Ann. du Mus. xix. p. 88 ; Desm. Mamm. p. 51. Hair 

 gray, varied with brown. Inhabits Malacca. 



Differs from the two preceding in the colour of the hair, and its 

 less size ; by many considered as a variety only, and not well 

 established as a species. 



6. H. LEUCISCUS. The W^w-wow Pithecus leuciscus, Geoff 

 Ann. duMus. xix. p. b3 ; Desm. Mamm. p. 51. Hair 

 ash gray ; the face black, surrounded by a circle of light 



* In the text of this volume we have followed Geoffroy Saint Hilaire in 

 dedicating the entirely black species to Sir Stamford Raffles. It being, 

 however, the old Linnean, S. lar must stand under that title, and th 

 species with white hands has been named by Messrs Vigors and Horsefield 

 u above. 



