PTEUnPUS L'ALAXUS. 177 



and sharply iiiaikocl off from blackish back ; on the foreueck tho 

 yellowish colour is considerably clouded with pale russet. liase of 

 fur of mantle yellowish buff like tips of hairs, except posteriorly 

 near shoulders where the hairs have sliort blackish bases. — Occiput, 

 as far forward as a lino between ears, similar to mantle, but washed 

 with russet at base of cars. Crown and interocular space mixed 

 buffy and dark brown with blackish bases to the liairs and thinly 

 sprinkled with silvery whitish. Colour gradually darkening ou 

 sides of head, and passing on throat into blackish thinly sprinkled 

 with silvery whitish. 



An immature female (skin, Mackenzie I., 7-1.10.5.10) is on tho 

 whole similar in colour to the type, but with the geuei-al tinge of 

 the hack and rump more approaching seal-brown than hlackish ; 

 mantle and sides of neck unusually pale, cream-buff with long seal- 

 brown bases to the hairs ; foreneck much clouded with seal-brown. 



tSe.vual differentiation. — Probably as in Pt. tonganus. The only 

 male examined of Pt. yapensi'i has the hairs of the mantle somewhat 

 rigid and uniform yellowish buff from base to tip (except poste- 

 riox'ly, near line of demarcation between bright mantle and blackisli 

 back). Tho only female is immature ; fur of mantle soft and 

 spreading, everywhere with long dark brown bases to the hairs. 



Measurements. On pp. 175, 176. 



Specimens examined. Two, as registered below. 



Jiange. Western Carolines : Yap, Mackenzie. 



Tjipe in collection. 



fl. (fad. skin; Yap, W. Carolines (Cf^j/. Godoi'tVoy Muspum. 74.10.5.11. 



skull. JWers). (Ti/pc of species.) 



i. 2jun. skin; Mackenzie, W. Carolines Grodctfroy Museum. 74.10.5.10. 



skull. {Capt. Peterti). 



ID. Pteropus ualanus, Pet. 



Pteropua keraiidren (pt., nee Q. ^- G.), Lesson, Man. Ma mm. p. lOP, 



no. 281 (1827 : E. Carolines) ; id., N. Tabl. Jt. Anim., Mamm. 



p. 13, no. 183 (1842: Ualan) ; Jentink, Cat. Ost. Mamm. 



p. 2t)2 (.specimen f^) (1887: Ualan); id., Cat. Syst. Mamm. 



p. 149 (18'88 : Ualan). 

 Pteropus keraudrenius (pt., ner Temm. 1825), Temminch, Man. 



Mamm. ii. p. 77 (1837: Ualan); Fitzinger, SB. Akad. Wien, 



Ix. .\bth. i. p. 437 (1870: Caroline!:). 

 Pteropus ualensis, Finsch, Ibis, 1881, p. 107 (ITiilan) (ncn. nud.). 

 I'teropus ualanus, Peters, SB. Ges. nat. Fr. 1883, no. 1 (Id Jan.) 



p. 1 (Ualau) ; Jentink, Cat. Syst. Mamm. p. 149 (1888 : Ualan? ; 



Tronessart, Cat. Mamm. i. p. 78 (1897 : Carolines) ; ? Ellint. Cat. 



Mamm. Field Col. Mus. p. 492 ( 1907 : Carolines) : (^. M. Allen, 



IhUl. Mug. Comp. Zool. Han: QM. lii. no.3,p. 29 (1908: Ualan). 

 Pteropus (Spectrum) ualanus, Matsdiie, Meqachir. p. 28, pi. v. ligs. 



17-22 (; .skull) (1899: Uaiau); Troiu:<sait, Cat. .Mamm.. Supjd. 



p. 53 (1904 : Ualan). 



Diagnosis. — Similar to Pt. yapensis, hut with much smaller 

 teeth. Porearm 130'5-133-5 mm. Ual>. E. Carolines. 



