INTRODUCTION. 



5? 



Tribes. Families. 



SARCOPHAGA. 

 Three kinds of teeth ; 

 canines long in both 

 jaws ; a simple sto- Dasyuridce. 

 mach ; no intestinum 

 caecum. 

 Extinct transitional 



Subgenera. 



/ Thvlacinus. 

 1 Dasyurus. 

 ( Phascogale. 



ENTOMOPHAGA. 

 Three kinds of teeth in 

 both jaws ; a simple 



stomach ; a moder- Ambulatoria. Myrmecobius. 

 atelvlong intestinum 



~~ (SHS. 



Samsoria. 



. 



Didelphis. . Chcironectes. 



CARPOPHAGA. 



f Pha,angi s ta. 



mach; a very long 

 intestinum caecum. 



POEPHAGA. 



Anterior incisors large 

 and long in both 

 jaws ; canines pre- 

 sent in the upper 

 jawonly,orwanting. 

 A complex stomach; 

 a long intestinum 

 ccecum. 



BHIZOPHAGA. 

 Two scalpriform incis- 

 ors in both jaws ; no 

 canines. Stomach 

 with a special gland; Phascolomyidce. 

 caecum short, wide, 

 with a vermiform 

 appendage. 



,. 

 ^ 



Petaurus. 



Phascolarctida. Phascolarctus. 



mnus. / Halmaturut. 



nlnmrq 1 

 todoii } Fo8si1 ' 



Thus four, celebrated Anatomists and Zoologists, 

 Cuvier, Geoffrey Saint-Hilaire, De Blainville, and 

 Owen, agree in regarding the Marsupiata as a dis- 

 tinct group of Mammalia; there are, however, several 

 Zoologists who regard the section Marsupiata as an 

 unnatural one, and arrange the species of that group 

 in the various other orders of quadrupeds. Among 



