Variation and Natural Selection. 



73 



Noctule Gr.Horse Shoe Hairy Armed Long Eared Lr.Horse Shoe Whiskered Piplstrelle 



Radius and 



Ulna 

 51.5 mm 



Metacarpal 

 43 mm 



Metacarpal 

 44 mm 



Phalanges of Diffi 

 43.5 mm 



IV 



Metacarpal 

 45 mm 



IV 



Phalanges of Digit 

 27.5 mm 



Metacarpal 

 42 mm 



'"'" 



V 



\ges of Digit 

 24 



Tibia 

 21.5 





Fig. 17. Variations adjusted to the standard of the noctule. 



