UALBOPITHECUS. 249 



Lower incisors pectinate, the two median pairs very deeply 

 cleft like combs ; outer pair much less deeply cut. Lower canine 

 and anterior premolar much like upper canine ; second premolar 

 elongate and tuberculate ; lower molars very similar to the upper, 

 but with the convexity towards the outside of the jaw. 



Skull broad, muzzle rounded and blunt, rim of orbits projecting, 

 postorbital processes broad, zygomata strong ; palate terminating 

 posteriorly in a median point, from which a ridge runs backwards 

 in continuation of the narial septum and divides the mesopterygoid 

 fossa. The bullse are completely ossified. 



The radius and ulna are united distally, the tibia and fibula 

 distinct throughout. The vertebral formula is : C. 7, D. 13-14, 

 L. 5-6, S. 5, C. 15-17. 



The ears are rounded and of moderate size. The feet have a 

 naked, very flat, non-tubercuJate sole. Claws sharp, much com- 

 pressed, and curved. Mammae 4, all pectoral. There is a large 

 caecum. 



This remarkable animal has been referred by different naturalists 

 to the bats and lemurs ; but it has really no affinity with the 

 former, and but little with the latter, from which it is separated by 

 the form of its brain, the structure of the skull and teeth, and the 

 deciduate discoidal placenta. 



Two species are known one, G. philippinensis, peculiar to the 

 Philippine Islands ; and the original type, G. volans. 



133. Galeopithecus volans. The flying Lemur. 



Lemur volans, L. Syst. Nat. i, p. 45 (1776). 



Galeopithecus volans, Pall. Acta Acad. Sc. Petrop. iv. p. 208, pis. vii, 



viii (1780) ; Horsf. Cat. p. 26 ; Blyth, J. A. S. B. xxi, p. 433, 



xxii,p. 411; id. Cat. p. 19. 

 Galeopithecus temminckii, Waterhouse, P. Z. S. 1838, p. 119; Cantor, 



J. A. S. B. xv, p. 177. 

 Eubong, Malay. 



Fur short, very fine and soft. Canines and the outer upper 

 incisor and first lower premolar with low crowns. Anterior upper 

 incisors trilobate (sometimes \vith four lobes). 



Colour above varying from dark greyish brown to pale chestnut, 

 always overlaid, mottled, and blotched with silvery white ; lower 

 parts light brown, more or less rufous. Younger animal much 

 variegated, and with well-defined white spots on the side. The 

 dorsal fur is generally (not always) dusky at the base ; the greater 

 part of the length is whitish, a subterminal ring blackish brown 

 (varying to chestnut), and the tip white. 



Dimensions. A male measured, head and body 16 inches, tail 9. 

 A skull is 2-75 inches long in basal, 2-9 in extreme length, zygo- 

 matic breadth 2. 



Distribution. The Malay peninsula, extending north to Mergui 

 in Tenasserim, where it was obtained by Capt. Berdmore, and to 

 Siam, also Sumatra, Java, and Borneo. 



