64 PTEROPODIDJI. 



naked (as in the adult), a few hairs appearing on their proximal 

 third only*. 



First upper premolar (in immature specimens) in the rather nar- 

 row space between the canine and the second premolar, nearly as 

 large as one of the middle lower incisors (in old individuals gene- 

 rally absent) ; last upper molar almost as large as the first lower 

 premolar, which nearly fiHa the space between the canine and second 

 premolar ; last lower molar scarcely as large as one of the outer 

 lower incisors ; premolars and molars with well-developed internal 

 cusps and posterior transverse basal ridges, becoming worn down and 

 quite disappearing in old individuals ; the third upper premolar 

 with a slight indication of an antero-intemal basal projection. 



In a young specimen, still retaining some of the milk-teeth, the 

 first upper premolar is well developed, and quite as large as one of 

 the middle lower incisors. 



Length (of an adult (S ), head and body 9"-5, head 2"-75, ear 1", 

 eye from nostril 1", forearm 5"-7, thumb 2"-4, second finger 4" ; 

 third finger — metacarp. 3"-8, 1st ph. 2"-8, 2nd ph. 4"-2 ; fifth finger 

 — metacarp. 3"-8, 1st ph. l"-7, 2nd ph. l"-7 ; tibia 2"-6, calcaneum 

 0"-8, foot l"-7. 



(For comparative measurements of sktdl, see p. 66.) 



Hah. Polynesian Subregion (except the Sandwich Islands, Gil- 

 bert's group, Ellice's group, and the islands east of Samoa), appa- 

 rently generally distributed, extending from the Mariana Islands 

 to Savage Island, and from the New Hebrides to Samoa. 



Adult specimens of Pt. keraudrenii may generally be easily distin- 

 guished from those of other species of the section to which it belongs 

 by the peculiarly light colour of the fur of the neck, which con- 

 trasts strongly with the dark-coloured fur of the back, by the blunt 

 conical ears, by the hairs extending slightly upon the legs, and by 

 the form of the teeth. In the bright-coloured patch of fur on the 

 crown of the head, and in the shape of the ears, it agrees closely 

 with Pt. juhatus, but its very much smaller size at once distinguishes 

 it. From Pt. samoensis, which is found in some of the islands 

 inhabited by this species, it is distinguished by the comparatively 

 longer ears and very different quality and distribution of the fur, 

 which, in that species, clothes the legs to the ankles. This character 

 not only at once distinguishes the adult animals, but also the 

 young. 



a- ad. sk. Moala Island, Fiji. J. Macgillivray, Esq. [C.]. 



b, c. $ imm. & ad. sks. Moala Island, Fiji. F. M. Rayner, Esq. [P.]. 



d, e. cJ ad. sks. Ovalau Island, Fiji. F. M. Rayner, Esq. [P.J. 



(Type of Pteropusjiavicollis, Gray.) 



/. <S ad. sk. Totoya Island, Fiji. F. M. Rayner, Esq. [P.]. 



g, h. imm. & ad. sks. Tariuni, Fiji. E. A. Liardet, Esq. [P.J. 



i. S ad., al. Fiji Islands. Godeffioy Museum. 



j, k. (J & 2 ad., al. Samoa. Godeffi-oy Museum. 



* With this contrast description of young of Pt. samoetisis, from same 

 locality (see p. 3.'5). 



