246 



CHIEOPTBRA 



way from eye to nostril, its breadth when flattened decidedly 

 greater than height above crown ; anterior border of conch 

 abruptly convex below, then nearly straight to broadly rounded 

 off extremity ; posterior border convex throughout, most strongly 

 at middle ; antitragus long and low, well marked off posteriorly, 

 its anterior border extending to just below angle of mouth ; inner 

 surface of conih finely papillose, without evident cross ridges ; 

 tragus very short, scarcely rising above level of anterior base of 

 conch, much wider above than below, its greatest width about 

 equal to height ; anterior and posterior borders concave, the 

 anterior more so than posterior, their length about equal to that 

 of expanded upper portion, which is more abruptly rounded 

 anteriorly than posteriorly. Wing long and slender, the fifth 

 finger exceeding forearm by only ^ to ^ length of latter, the 

 membrane leathery and opaque, joining leg at ankle ; third and 

 fourth metacarpals sub-equal, the third slightly the longer and 

 about equal to forearm, fifth abruptly shorter by slightly more 

 than one-fifth forearm. Leg short and strong, the broad foot 

 about one-half as long as tibia ; calcar 1^ to twice as long as 

 tibia or as free border of interfemoral membrane, its distal 

 termination obscure but basal portion strong, well defined and 

 \vith keel about 2-5 mm. wide supported by a well defined 

 thickening and terminating in an abrupt convexity on side 

 nearest heel. Tail rather short, extending to between shoulders 

 when laid forward, the tip of last vertebra (about 2 mm.) free. 



Fur and colour. — Fur dense and velvety, the hairs at middle 

 of back only about 5 mm. in length ; on dorsal surface of wing 

 it extends to line joining knee with middle of humerus, on ventral 

 surface to line from elbow to knee ; beyond this line it spreads 

 thinly on under surface of antebrachial membrane and also 

 behind forearm and across bases of metacarpals along an area 

 about 10 mm. wide. Interfemoral membrane furred both above 

 and below at extreme base only. Colour of upper parts a rather 

 dark yellowish brown, near the wood-brown and cinnamon of 

 Ridgway, the hairs showing a faint clouding of prouts-brown in 

 certain lights, their basal portion a light dull isabella-colour ; 

 underparts scarcely different from back, though usually a little 

 lighter and more dull ; muzzle and cheeks dusky ; ears and 

 membranes blackish. 



Skull. — General aspect of skull broad and robust, rather high 

 posteriorly, low anteriorly, with conspicuous narial emargination. 

 Dorsal profile rising rather rapidly from incisors to lambda, with 

 slight convexity over lachrymal region and a slighter though 

 more abrupt concavity just in front of lambda. Ventral profile 

 elevated posteriorly. Brain-case ovate, but with wide mastoid 

 and paroccipital region and squarely truncate occiput which 

 together produce a distinctly truncate-cuneate outline, slightly 

 though evidently wider than long ; depth at middle distinctly 

 more than half mastoid breath ; sagittal crest low but evident, 



