756 MR. O. THOMAS ON TWO NEW PTEROPI [DeC. 19, 



Pteropus phjEOCephalus, sp. n. (Plate LIV.) 



Face and chin dark blackish brown, crown of head somewhat 

 lighter ; dorsal side of neck, and back, chestnut-brown, the tips of 

 the hairs nearly white ; shoulders and sides of neck very pale yellowish 

 white, forming well-marked shoulder-patches ; the bases of the hairs 

 brown ; below neck very light brown. Chest with a conspicuous 

 patch of yellowish white on its centre ; rest of underside and fur on 

 the iuterfemoral membrane and wings dark rufous-brown. Tips of 

 the hairs throughout, and especially on the head and neck, with a 

 very noticeable silvery lustre. 



Above, the fur is nearly two inches in breadth across the back, 

 and extends thinly half along the humerus, while the forearm is quite 

 naked. Below, it grows on the wing-membrane as far as a line 

 drawn from the elbow to the knee, and there is a distinct patch of 

 lougish hairs behind the proximal third of the forearm. Inter- 

 femoral thickly covered above for half its breadth, nearly naked 

 below. 



Ears narrow, slightly longer than the muzzle, inner margin evenly 

 convex, tip narrowly rounded off, outer margin straight in its upper, 

 convex in its middle, and straight in its lower third. Wings arising 

 from within half an inch of each other on the back. Iuterfemoral 

 very narrow, almost obsolete in the centre. 



Teeth (Plate LIV.) on the whole very small and weak. Ca- 

 nines, both above and below, with unusually broad postero-internal 

 basal ledges. First upper premolar minute or deciduous, when 

 present standing in the tooth-row ; second premolar and first molar 

 scarcely longer than broad, second molar regularly oval ; last molar 

 subtriangular, rather smaller than the first lower premolar, and 

 larger than the last lower molar, which is about equal to one of the 

 outer upper incisors. Below, the inner incisors are about half the 

 size of the outer ; first premolar large, filling up the space between 

 the canine and second premolar ; second and third premolars and 

 first molar with small postero-external basal cusps. 



Dimensions of the type, a gravid female in alcohol, from Mortlock 

 Island : — 



Head and body 6 inches ; head 1'95 ; nose to eye 0*7 ; nose to ear 

 1*55 ; ear-conch, length '86, breadth '43 ; forearm 4*0 ; thumb 

 r6 ; 2nd finger 2-75 ; 3rd finger — metacarpal 2*65, 1st phalanx 1*85, 

 2nd phalanx 2'75 ; 5th finger — metacarpal 2'75, 1st phalanx 1-2, 2nd 

 phalanx 1*25 ; tibia 1-9 ; calcaneum 0*4 ; foot 1*25. 



This brightly marked species seems to be most nearly allied to 

 Ft. temmincAi, Peters, from Amboina and Ceram ; from which, 

 however, it differs in its brown instead of yellow head, in its shorter 

 muzzle, rounder molars, much larger first lower premolars, and 

 in the broader postero-internal ledges to the canines. 



Pteropus breviceps, sp. a. (Plate LV.) 



Colour throughout uniform dark rufous-brown, the short hairs on 

 the muzzle and between the eyes silvery yellow. Fur soft and 



