118 BONEIA BIDENS. 



Wings from the back near the spine , about two lines 

 apart at their origin and from a point between the meta- 

 carpal bones of the first and second toe. 



Tail comparatively long and very thick , projecting two 

 thirds its length beyond the interfemoral membrane. 



Roof of the mouth with seven semi-circular palate-ridges : 

 the four anteriores are undivided , the three posteriores are 

 divided each by a narrow incision into two toothed half- 

 ridges. 



Upper incisors very small', unicuspidate , separated from 

 each other by a large interval and also from the canines 

 by a wide space. Lower incisors unicuspidate , close to 

 the canines: in front they are separated in pairs by a 

 narrow interval; the outer incisors are larger and stronger 

 than the inner ones. Upper canines grooved in front, 

 lower ones smooth , distinctly inclined outwards. First upper 

 premolar minute , second premolar subacute, well developed ; 

 third premolar less than half the size of the former, equal 

 to the molars in size. The two first lower premolars about 

 half the size of the lower canines , subacute. The third 

 lower premolar slightly elevated above the molars , almost 

 as high as the other lower premolars. 



No shoulder-glands in male. 



Penis without bone. Claws very large and strong, well 

 arched. 



Muzzle , ears , wings , interfemoral membrane , tibiae and 

 feet naked. Small glands above the eyes, lips and chin 

 are oruated with long and rather stiff hairs. 



Face in front of the ears yellowish brown; crown and 

 back of head , a half collar ending on the sides of the neck 

 and the shoulders golden yellow. Chin , chest , abdomen , 

 femur and upper half of humerus dark brown. Naked 

 parts of wings and interfemoral membrane brown. 



Fur moderate long and dense. The fur of the half 

 collar slightly longer. 



Type in the Ley den Museum. 



Notes troiiT the Leyden Miuseiim. 



