INTRODUCTION. 



57 



Tribes. 

 Sarcophaga. 

 Three kinds of teeth ; 

 canines long in both 

 jaws ; a simple sto- 

 mach ; no intestinum 

 ccecum. 

 Extinct transitional 

 forms 



Families. 



Dasyuridce. 



Genera. 



Subgenera. 



Entomophaga. 

 Three kinds of teeth in 

 both jaws ; a simple 

 stomach ; a moder- 

 atelylong intestinum 

 OBcum. 



( Thylacinus. 

 < Dasyurus. 

 (. Phascogale. 



/ Phascolotheriuni. \ r-.j-M 

 I Thylacotherium. / ^ <'®*"- 



Ambulatoria. Myrmecobius, 



Saltoria. . 

 Scansoria. 



( Cha?ropus. 

 (.Perameles. 

 Didelphis. . Cheironectes. 



Phalangistidix. 



Carpophaga. 

 Anterior incisors large 

 and long in both 

 jaws ; canines incon- 

 stant ; a simple sto- 

 mach ; a very long 

 intestinum ccecum. 



POEPHAGA. 



Anterior incisors large 

 and long in both 

 jaws ; canines pre- 

 sent in the upper 

 jaw only,or wanting. 

 A complex stomach; 

 a long intestinum 

 ccecum. 



Rhizophaga. 

 Two scalpriform incis- 

 ors in both jaws ; no 

 canines. Stomach 

 with a special gland; Phascolomyidc 

 caecum short, wide, 

 with a vermiform 

 appendage. 



rPhalangista. 

 I Petaurus. . 



/"Cuscus. 

 J Pseudochei- 

 J rus. 

 (.Tapoa. 



. Acrobata. 



Phascolarctidce. Phascolarctus. 



Macropodidce. 



( Hypsipryranus. f Halmaturus. 

 \ Macropus. \ Macropus. 



{SI'p'ioTo'ZriFossil. 



Thus four, celebrated Anatomists and Zoologists, 

 Cuvier, Geoffroy 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 



