PTEROPrs i.TF.Ei. 3;-59 



66. Pteropus iylei. A', A)id, 

 Plerupus medius (pt.), Dobson, Cat. Chir. li. M. p. 52. 



Pteropus ed wards! (nee E. Geoff.), Gray, P. Z. S. 1861, p. 136 

 (" Cambodj i," mistake for Peehaburi, see specimen a, infra). 



Pteropus medius {nee Teinm.), D(,bsnn, Cat. Chir. B.M. p. 5:?, speci- 

 men a (1878: '• Pachora, Bombay," mistake for Peehaburi). 



Pteropus (Spectrum) assamensis {nee McClelland), Matschie, Megn- 

 chir. p. 26, pi. iv. fig. 8 (skull) (1899: Banskok) ; Trouesmrt, 

 Cat. Mamm., Suppl. p. 5,3 (1904: Banglcok). " 



Pteropus Iylei, K. Andersen, Ann. lV 3Liff. N. H. (8) ii. p. 367 (1 Oct. 

 1908 : I'echaburi ; Bangkok ; Saigon), 



Diagnosis. — Similar to PL yiganteus, but much smaller ; breast 

 and belly usually blackish or seal-brown (as in Pi. vampyrus), but 

 occasionally brigbt-coloiirod (as in Pi. (jiyantew^). Forearm about 

 148-154 mm. Hah. Eangkok region and Cochinchina. 



Skull and teeth. — Skull not differing in shape from that of 

 Pt. gignnteus, but much smaller : total length Gl-66'5 mm., against 

 71-70 in giganteus • size of skull on the whole equal to, or still 

 smaller than, that of l^t. comorensis, to which it bears much resem- 

 blance also in shape, though the orbits are a little larger, the meso- 

 pterygoid fossa broader, the coronoid process of mandible, probably 

 owing to (he weaker dentition, feebler and more sloping. — Structure 

 of teeth to all details as in Pt. giganteus, but dentition on the 

 whole remarkably weak, the individual teeth being relatively smaller 

 than in giganteus. 



Fur. — Short and closely adpressed on back, as in Pt.g. giganteus. 

 Longest hairs on back about 10 mm., mantle 14, belly 10-1^. 

 Width of furred area of back 35 mm. (measurements from dried 

 skins). Distribution of fur as in Pt. giganteus. 



Colour.-— Five skins, males and females, adult and immature : 

 essentially as in the non-melanistic races of Pt. vampgrus, but somo 

 specimens with bright-coloured breast and belly, like Pt. giganteu.^. 

 — Back seal-brown or dark vandyck-brown, dislinctly grizzled with 

 pale greyish hairs or tii)S to the hairs. Rump in some specimensmore 

 conspicuously suffused with typical vandyck-brown. — Breast, belly, 

 and flanks seal-brown or blackish seal-brown sprinkled with some 

 glossy blackish or maroon-blackish hairs; darkest in middle line of 

 breast and belly, generally suffused with dull vandyck-brown on sides 

 of breast and belly. A few pale greyish hairs detectable on close ex- 

 amination. In one specimen (Peehaburi, 61.10.1 8.H) the breast and 

 belly are dull ochraceous-buff (somewhat approaching raw sienna), 

 with seal-brown bases of the hairs showing through on bell}- and 

 anal region. — Mantle varying from light ochraceous-buff to almost 

 ochraceous, generally richest (ochraceous) in the centre, palest 

 (buffy) posteriorly in a transverse line across shoulder region, 

 shading into a dec[ier ochraceous on sides of neck and into tawny 

 on foreneck ; most of the hairs of mantle, sides of nock, and fore- 

 neck seal-brown at extreme base.^-Crown. interocular space, and 



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