636 DESCRIPTION OF NEW SPECIES OF BATS ALLEN. 



The keel is not highly developed and measures 7 mm in length. The 

 first and fifth toes are thicker than in N. brasiliensis. 



The tip of the third phalanx of the fourth finger is without project- 

 ing lobe. 



The lips and adjacent surfaces are more tumid than in N. brasiliensis. 

 The postmentalwart is especially conspicuous as compared to the same 

 structure in that species. As iu JV. brasiliensis, a median ridge lies 

 between the wart and the lower lip. 



Measurements of head and ears. 



Millimeters. 



Distance from interauricular membrane to end of muzzle 3 



Height of auricle 13 



Distance of auricle to angle of mouth 2 



Width and height of antitragus 3 



In the entopatagium * the intercosto-humeral nerve divides into two 

 terminal branches at the upper third of the wing membrane before 

 reaching the elbow. 



Four oblique lines in the positions of the intercostal nerves can be 

 discerned. 



The mesopatagium with the internal cutaneous nerves much the same 

 as in N. brasiliensis ; but the superior branches are much less numerous 

 than in that species. The distal end of the second phalanx of the fifth 

 finger is spatulate. 



The nerves on the interspaces the same as in N. brasiliensis. First 

 oblique band at radio-carpal angle attached at side of palmar surface 

 of the muscle-mass of the fifth metacarpal bone and passes downward 

 and inward at an angle to the radius for a distance of 4 mm . The pouch 

 is conspicuous. 



The tendon of the palmar interosseous muscle extends from the 

 middle of the fifth metacarpal bone to the distal end of the first pha- 

 lanx. 



Fur on the back of a delicate fawn inclining to brown at the shoul- 

 ders. The back of the neck and head of a lighter shade. Back of the 

 ear the hair is almost white and covers the posterior surface to a point 

 just beyond the line answering to the keel. The fur of the venter is 

 of a uniform light-brown hue, verging to white. The wing membranes 

 and tail membrane are of a brown color and are naked, excepting along 

 a line continuous on the dorsum from the shoulder to the middle of the 

 thigh. A delicate line of fur extends from the upper third of the arm 

 to the middle of the thigh. The fur of the trunk, both at the shoulder 

 and thigh, is continuous with this line, but on the entopatagium the 

 hair is absent alongside of the body. 



On the venter the foot and the distal third of the tibia are the only 

 parts seen of the lower extremity, the remaining parts are concealed 



# For explanation of the terms entopatagium and mesopatagium see Proc. Acad, 

 of Nat. Sci., Philadelphia, 1889, p. 314. 



