556 



THE AMERICAN NATURALIST [Vol. XL 



ant area is increased, however, by the long fringing hairs. There 

 are striated y)ads at the extremities of the digits. The probably 

 prehensile tail has its long hairs arranged on either side as in its 

 near ally, the pen-tailed plialanger, Dista?churus, which from its 

 skull and teeth may be very close to the ancestral type of Aero- 



