MAMMALS FROM ENGANO 107 



it is of an exceedingly sombre tone. In colour therefore Pt. mo- 

 diglianii in the two sexes closely resembles the black Andaman 

 females referred by Dobson to Pt. nicobaricus. 



Skull not dissimilar in size and general proportions to that 

 of Pt. hypomelanus , but , correlated with the greater breadth 

 of the mouth and distensibility of the lips , all the lateral teeth 

 are more splayed outwards, so that a greater portion of them 

 are visible outside the bony muzzle , in the dorsal view of the 

 skull. Orbits not completed behind. Anterior premolar minute 

 or absent; last upper molar rounded-triangular, rather larger 

 than the last lower molar, which latter is evenly oval and about 

 equal in size to the round anterior premolar. Inner lower inci- 

 sors about one third the area in cross section of the outer ones. 

 Premolars and molars smooth , without prominent secondary 

 cusps or projections. 



(=5 5 inch.) (=5.3 inch.) 



Skull. ( 9 ). Basal length 56 ; greatest breadth 32.5 ; tip of 

 nasals to supraorbital foramina 26.2; interorbital breadth 8.8; 

 intertemporal breadth 8; breadth of brain-case 31.7; palate 

 length 35.5; upper canine, cingulum to tip (behind) 7.2; hori- 

 zontal length of p^ 4.3; p^ 4.7, w' 5.6, m^ 2.4; 'p^ 4.5, ^ 4.8, 

 m^ 2.2 ; front of c to back of m^ 24 ; front of c to back of m^ 27. 



This sombre and dull coloured fruit-bat is interesting as being 

 in characters and size, as in geographical position, intermediate 

 between the large Pt. nicobaricus, Zel. of the Andamans and 

 Nicobars (or at least the black form of that species) and the 

 far smaller Pt. natalis, Thos, of Christmas Island. The size of 

 each of these being very constant in their respective habitats , 



