jrom the Polynesian Suhregion. 471 



t5;3-5 (49-5-50'5) ; fifth finger, metacarpal *93-5 and tc>3 

 (85-5-S'J), first plialanx *40 and ^V2-b (39 5-42), second 

 phalanx *36-5 and i42'5 (39-5-42). 



Fur. — Length of fur in centre ot back *19*5 and t20'5 mm. 

 (longest hairs; in Ft. anetianus 31), and *12 and tl2'5 

 (general mass of hair ; in Ft. anetianus 17). Distribution of 

 fur nninodified. 



Colour. — Type (adult male) : General colour of back 

 approximately pale cream, if viewed against the tips of the 

 hairs, with side light, and with the surface of the fur below 

 the level of the eye ; if viewed against the tips of the hairs 

 and with the eye between the light and the object, the fur of 

 the back appears conspicuously washed with a very pale tinge 

 of tawny or russet-tawny ; individual hairs uniform from 

 base to tip. Mantle, nape, and sides of face similar to back, 

 but (in any light and position) strongly suffused with a tinge 

 of russet-tawny considerably deeper than that noticeable on 

 back. Underparts similar to back, but decidedly more 

 washed with buff or pale ochraceous-biiff, particularly on 

 foreneck and centre of breast. — This coloration is strikingly 

 like that of the unrelated Fteropus Jceyensis. 



Paratype (adult female) : Different in colour from type. 

 Back russet mars-brown, sprinkled with many pale cream 

 hairs, this lightening of the russet mars-brown colour being 

 noticeable all over the back, though more conspicuously soon 

 the rump ; individual hairs uniform from base to tip. Head 

 similar to back, but more heavily sprinkled with cream- 

 coloured hairs. Mantle and sides of neck essentially as in 

 Ft. anetianus, buffy washed with ochraceous or (on the sides) 

 rnsset-ocliraceous. Threat, breast, and belly mars-brown 

 thickly sprinkled with pale hairs. 



So far as the colour of the fur is concerned, the paratype 

 described above differs from Ft. anetianua chiefly in the more 

 russet or russet mars-brown (not Vandyck-brown) general 

 tinge of the fur. At first si^ht tlie type presents a totally 

 dirterent style of colour, but in reality the difference is 

 evidently due simply to an excessive development of the pale 

 (cream or buff) element, which in the paratype is noticeable 

 only as a " sj)rinkling" of the daiker tinges; in the type 

 this cream and buff' colour has spread uniformly all over the 

 animal above and below, reducing tlie russet or mars-brown 

 element to a delicate wash of the colour of the back. 



Judging from other species of the genus it appears rather 

 unlikely that the colour-difference is sexual. 



Type. — <S ad., skin and skull, Aurora Island (Maiwo), 



