LIFE HABITS AND DENTITION 



87 



Fig. 26. — Dentition of Tree Kangaroo (Dendrolagus inustus, 9.221-7). 



Fig 27. — Dentition of Bennett's Wallaby (Macropus bennetti, 9.221-4). Figs. 25, 

 26, 27 represent successive stages in the evolution of the lophodont herbivorous type 

 ending with the grazing dentition of- Macropus. 



