322 PROCEEDINGS OF THE ACADEMY OF [1889. 



The predigital line of the fourth interspace appears near proximal 

 end of the fifth digit. It crosses obliquely the interspace to the end 

 of the fourth digit. It sends a branch which runs along the fifth 

 digit. In a second example two predigital nerves were present. 



Interfemoral membrane with faintly marked caudo-crural lines 

 which extend from the tail to the tibia at the ankle. 



Miniopteris schreibersii. 



The prebrachium with a broad marginal band (tendon of uccipito- 

 pollical?) but without oblique lines to the delicate line extending 

 concentric to the marginal band. 



Lines of endopatagium six in number, conspicuous. Intercosto- 

 humeral line originates near the axilla and reaches the free margin 

 of the wing-membrane at a point below the elbow. The internal- 

 cutaneous system composed of the oblique or main fibers only, and 

 ends abruptly after a long horizontal branch, as in Noctilio. It is 

 distributed quite to the tip of the fifth finger. Vertical lines 

 beneath main line fibers abundant, at least seventeen in number, 

 crowded toward the end of the line. The oblique line from the 

 ankle conspicuous and joins the intercosto-humeral. 



The fourth interspace shows the predigital nerve extending parallel 

 to the fifth metacarpal bone to its distal third and is thence deflected 

 obliquely downward and forward to the end of the fourth digit. The 

 postdigital often absent ; when present it is small and inconspicuous. 

 The third interspace has a predigital nerve appearing at the first 

 interphalangeal joint of the fourth finger, and a larger postdigital 

 from the metacarpo-phalangeal joint of the third finger. 



The interfemoral membrane shows a distinct pelvo-tibial line and 

 three symmetrical lines from the caudal vertebrae. Two faint lines 

 run down from palm for a centimeter apparently in the position of 

 the fibrous lines which extend from the palm to this membrane in 

 Molossi. 



The sickle-shaped terminal phalanx of the third finger has a free 

 tip and a cutaneous hem on pollical side. 



The terminal phalanx of the fourth finger is small acicular, in- 

 closed and directed dorsal with a slight inclination pollical ; that of 

 the fifth finger is about the length of the preceding, is acicular, 

 directed somad, the extreme tip projects, and is free on pollical side. 



The distribution of the fur on the interfemoral membrane is of 

 sexual significance. In the female the short hair is sparsely diffused 

 at the base of the tail and along the caudal vertebras and is absent 



