322 PROCEEDINGS OF THE ACADEMY OF [1898. 



General characters. — About the size of the Bornean Kerivoula 

 pusilla Thomas, 2 but with shorter ears, feet and legs, less hairy wings, 

 and more uniform coloration. Upper incisors bicuspidate; crowns 

 of upper premolars with transverse diameter equal to or slightly 

 greater than antero-posterior diameter. 



Ears. — The ears are relatively shorter than in K. hardwickii ; laid 

 forward they reach to nostril. Anterior border extremely convex, 

 much more so than in K. hardwickii, but probably about as in K. 

 pusilla. Posterior border with sub terminal concavity very shallow 

 and close to tip of ear. Tragus essentially as in K. hardwickii, but 

 with a distinct notch immediately above anterior base. 



Membranes. — Membranes very thin and delicate, light brown with 

 irregular pellucid mottling. The specimen is in an excellent state 

 of preservation, so that this mottling of the membranes must be re- 

 garded as a normal character. Wings essentially naked as in K. 

 hardivickii; uropatagium more hairy. The fur of the body extends 

 along the base of the wings in a very narrow line only ; beyond this 

 a few inconspicuous hairs are scattered over the area bounded ex- 

 ternally by the line from elbow to knee. Proximal half of inter- 

 femoral membrane rather thickly sprinkled with yellowish hairs, 

 which extend along the legs to feet. 



Fur and color. — Fur long and soft, but not dense ; that on mid- 

 dle of back about 10 mm. in length. 



Color ochraceus buff throughout, scarcely paler on the belly, the 

 hairs of the back faintly tipped with rufous. Except on the head and 

 membranes the hairs are everywhere plumbeous at base. 



Skull. — Skull much smaller than that of K. hardwickii, but with 

 relatively broader and heavier rostrum. Brain case much more in- 

 flated anteriorly than in K. hardwickii. 



Teeth. — Each upper incisor bicuspidate, relatively smaller than in 

 K. hardwickii ; the outer separated from the canine by a distinct 

 space. First and second upper premolars subequal in all dimen- 

 sions, the transverse diameter of each equalling or slightly exceeding 

 the antero posterior diameter. Crowns of molars relatively narrower 

 than in K. hardwickii. Two inner lower incisors trifid and each 

 considerably smaller than the unicuspid outer incisor. Lower pre- 

 molars essentially like those of the upper jaw. 



Measurements. — Total length, 70 ; head and body, 31 (33) 3 ; tail, 



2 Ann. and Mag. Nat. Hist., 6th ser., XIV, p. 461, December, 1894. 



3 Measurements in parenthesis are those of the type of K. pusilla, an adult 

 female, as given by Thomas in the original description. 



