Table of maesupialia 



* Eight nipples in D. hallncatus alone ; other species regularly with 

 six nipples only. 



t Thomas mentions in P. cockerelli and Imigwaudahis only six 

 nipples ; all other Peramelidae, so far as known, with eight nipples. 



J The normal number of nipples is four, but single specimens of the 

 genera Trichosurus, Distachurus, and Petaurus, show sometimes only 

 two nipples. 



