new Forms of Pteropus. 365 



Pt. admiralitcUum ; orbital diameter 11, against 12-12\5. 

 Structure of teeth as in the allied species, but dentition on 

 the whole slightly weaker, p^ and m 1 markedly smaller. Fur 

 shorter; approximate length on back 9-11 mm. (16-18 in 

 Pt. admiralitatum). Colour of fur approaching that of 

 Pt. admiralitatum. Forearm about 113 mm. 



Type. $ ad. skin and skull, Pelew Islands ; collected by 

 Capt. Heinsohn (Godeffroy Museum) ; 13. M. 74. 10. 5. 8. 



Specimens examined. Two, in the British Museum. 



Range. Pelew Islands. 



Pteropus yapensis, sp. n. 



Allied to Pt. admiralitatum. Size of skull as in that 

 species, if not slightly larger, but temporal fossa much 

 broader, zygomatic arches therefore much more flaring poste- 

 riorly (zygomatic width about 36 mm., against 32-33 in 

 Pt. admiralitatum) ; frontal region between orbits broader ; 

 coronoid process markedly higher, coronoid height of 

 mandible larger than c-m 2 , but smaller than c-m 3 , in Pt. admi- 

 ralitatum subequal to c-m 2 . Essential characters of dentition 

 as in Pt. admiralitatum, but p 3 and p 4 distinctly larger, poste- 

 rior basal ledges of p z , p*, p 3 , p±, and m l somewhat heavier 

 and more sharply marked off from teeth, ciagulum of canines 

 broader. Length of fur as in Pt. peleioensis, shorter than in 

 Pt. admiralitatum. Blackish above and beneath, sprinkled 

 with whitish ; mantle and sides of neck strongly contrasting 

 yellowish buff; foreneck washed with russet. Forearm 

 about 130 mm. 



Type. J 1 ad. skin and skull, Yap Island, W. Carolines ; 

 collected by Capt. Peters (Godeffroy Museum) ; B.M. 

 74. 10. 5. 11. 



Specimens examined. Two, in the British Museum. 



Range. Western Caroline Islands : Yap and Mackenzie 

 Islands. 



Pteropus cognatus, sp. n. 



Allied to Pt. hrunneus (E. Queensland). General size of 

 skull as in that species, but rostrum much shorter, from front 

 of orbit to tip of nasals 17 mm., against 21 in Pt. hrunneus; 

 mandible markedly heavier posteriorly, coronoid height 26 mm. 

 (rather greater than lower tooth-row, c-»? 3 ), against 23'7 (less 

 than lower tooth-row) in Pt. hrunneus. m 3 considerably 

 reduced, little more than half the size of p 1 ; also m? some- 

 what smaller than in Pt. hrunneus. Colour essentially as in 

 the allied species. Forearm approximately 121 mm. 



