ISfifi. ] OR. J. E. GRAY ON THE PTEROPINE BATS. 65 



6. Cutting-teeth 4/4; lower in a regular series. Head elongated, 

 swollen in front. Glands on shoulder with a tuft of white 

 hairs. Epomophorina. 



1 1 . Epomops. Face moderate, rounded in front ; nose and chin 

 simple, hairy. Skull ovate ; face much shorter than the brain-case ; 

 upper cutting-teeth separate, spaced. E. franqueti . 



12. Epomqphorus. Face very long, rounded in front; nose 

 and chin simple, hairy. Skull elongate; face as long as brain-case; 

 upper cutting-teeth close together. E. whitei. 



13. Hypsignathus. Face very long, swollen and truncated in 

 front; nose and chin with a fleshy disk, with raised edges. H. 

 monstrosus. 



The Pteropidte are spread over the warmer parts of Africa and 

 Asia, and are found in many of the smaller islands of the Indian and 

 Pacific Oceans. 



There is a general similarity in the colouring of the majority of 

 the species ; specimens found in the same locality or island often 

 vary considerably from one another, even when the examination of 

 the skull and teeth show that they are of the same species. On the 

 other hand, specimens from different localities often resemble one 

 another so much in their external colouring that it is difficult to 

 distinguish them in any description that can be made ; but when the 

 skulls and teeth are examined they prove to be very different species. 

 Under these circumstances the locality of the specimens is an im- 

 portant element in determining the species. 



Pteropus wallacei, sp. nov. 



Fur very soft, reddish grey brown ; hair of the back black, of the 

 belly ashy white with reddish tips ; nape and sides of the shoulders 

 grey ; spot on cheek, at angle of mouth, a broad band along the 

 upper lip, a streak upon the centre of the nose (each of them edged 

 with darker brown), the back of the chin, and a lanceolate spot over 

 each eye pure white ; the hair on the dorsal surface of the upper 

 arm greyish white. Ears elongate, bald, with two impressed longi- 

 tudinal grooves. 



Hab. Celebes: Macassar {Mr. Wallace, 1857). 



This beautiful species was brought to England by Mr. Wallace, 

 but appears to have been overlooked ; for Mr. Edward Gerrard, Jun., 

 purchased it at Stevens's sale-room, included in a considerable lot of 

 skins of birds and other animals of little value. 



The specimen described is very young (the epiphyses of the bones 

 are all separate), and it doubtless grows to a larger size ; but this 

 does not in the least invalidate the distinctness of the species. 



There are the young of many species of Pteropine Bats in the 

 British Museum, sometimes with their mothers ; but in every case 

 the young is coloured like the parent, only the colours are not so 

 decidedly marked. This would lead one to believe that the adult 



Proc. Zool. Soc— 1866, No. V. 



