254 



DR, KNUD ANDERSEN ON BATS. 



[Apr. 7, 



part of the lancet. The lateral margins of the horseshoe are 

 sometimes turned up so as to form a fold ; in some individuals 

 they even show some indications of an emargination. 



Wing-indices. — The proportionate length of the metacarpals 

 and phalanges is quite as in A . planirostris ; so complete is the 

 similarity that the wing-indices of the latter species could be 

 substituted for those of A . jamaicensis without any appreciable 

 error (see the table on p. 310). 



Hairing on liinhs and membranes. — Upper side of proximal two 

 thirds (or half) of forearm, upper side of lateral membranes next 

 to body, of metacarpal of pollex, of femur, tibia, foot, and inter- 

 femoral (a narrower or broader distal portion excepted), under 

 side of proximal half of forearm and of proximal portion of inter- 

 femoral, very distinctly haired. 



In the northern i-aces the upper side of the tibia and inter- 

 femoral are generally more sparsely haired than in the southern 

 races, sometimes almost naked. 



Colour. — There is often a certain colour difference between 



