EXTERNAL CHARACTERS OF THE KOALA. 



603 



obliteration of the pads with expansion of the heel ; but, as in 

 the Phalangerine foot, the fifth digit is more widely separated 

 from the fourth than the latter is from the third, although the 

 digit in question is relatively shorter and the space above 

 mentioned somewhat wider. 



Text-fio-ure 25. 



A, B. Right fore and hind foot oi Thascolarctos cinereus 

 Q D, J, Phascolomys ursimis. 



