rTi:uoi'Us MELixoxcs. 225 



chon;;) ; Kio)i!<, Anduinans ^- yicobars, pp. 70, 13;3, 82-5 (1903: 

 (Jar Nicobar ; Tillanclioug; Great Nicobar ; habits); Trouessart, 

 Cat. Mamm., Suppl. p. 50 (pt.) (1904 : Xicobars) ; Miller, Fam. 

 8f Gen. Bats, p. 58 (pt.) (1907). 



Diagnosis. — Skull typical Pteropine. Posterior basal ledges of 

 p', P3, and p^ distinctly marked oaf from teeth. Ears large, broad, 

 exposed, tip rounded off. Tibia naked above. Fur of back short, 

 adpressed. Mantle and centre of breast and belly bright-coloured, 

 contrasting with blackish back, head, throat, and flanks, Si/.o 

 above medium : forearm 153-16-3 mm. Hah. Nicobar Is. 



Skull. — As in Pt. riifus. 



Teeth. — Essential characters as in Pt. ritfas. Cingulum of upper 

 canines rather narrower, p^, m\ and p^ somewhat heavier, m, 

 smaller. Posterior basal ledge of ]f short, but distinctly marked 

 off from tooth postero-externally ; in p^ the ledge is usually more 

 developed postero-internally than postero-externally, making pos- 

 terior margin of crown more or less oblique on longitudinal axis of 

 tooth. Posterior ledge moderate in p^, short in Pj, in both teeth 

 distinctly separated postero-externally from base of outer main cusj). 



Palate-ridges. — 5-|-5-l-3. First ridge terminating laterally at 

 front of canine; second at back of canine; third at front of p^ ; 

 fourth at back of p^ ; fifth at back of p' ; sixth at front of m^ ; 

 seventh at front of m" ; eighth to tenth behind m" ; eleventh to 

 thirteenth situated near palation border. 



Ears. — -Kather large, broad, exposed. Inner margin stronglv 

 and evenly convex from base to tip ; outer margin strongly convex 

 in lower two-thirds, concave in upper third ; tip rather broadly 

 rounded off. Naked, except posteriorly at base and along basal 

 half of outer and inner margins. 



Wings. — Membranes arising close together near sides of spine 

 (interspace about 10-17 mm.). 



Inter femoral. — Much reduced in centre, depth about 2-4 mm. 



Fur. — Short ; straight and adpressed on back ; wavy, somewhat 

 crinkled and spreading on rump and mantle. Longest hairs of 

 back and mantle about lo-lG, of belly 13-14 mm. Width 

 of furred area of back about 50-55 mm. 



Above, a narrow line of adpressed hairs along upperside of 

 humerus. Forearm naked, except for some very thinly spread and 

 closely adpressed hairs. Knee and tibia practically naked. Inter- 

 femoral naked, except in central portion. — Below, forearm, tibia, 

 and lateral interfemoral naked. Woolly hairs on antebrachial 

 intmbrane, along outer side of forearm, and on lateral membrane 

 next to body. 



Colour. — Whole scries examined, adult males and females, skina : 

 Back and rump generally blackish seal-brown, occasionally witli a 

 slight tinge of dark vandyck-brown. A few greyish-white hairs as 

 a rule detectable on close examination.- — -Middle of breast and belly 

 bright-coloured, contrasting with blackish sides, flanks, and anal 

 region. Bright-coloured area varying individually from golden 

 ochraceoua-bulf (^lightest extreme) to rich tawny, along the median 



Q 



