MAMMALIA. 



.-c.-ircely visible, ;ind it is not much more than an inch in length. It 

 is placed in the pouch by the mother, sucks firmly on to one of the 

 two or three teats, and remains in the pouch for eight or nine months. 

 In their external appearance, in their mode of nourishment, and 

 in their habits, the Marsupials differ extraordinarily from each other. 

 Many of them are herbivorous, and in their dentition approach the 

 Rodents or the Ungulates ; others are omnivorous ; others, like true 

 < 'iirni rora, prey on Insects, Birds and Mammals. In their general 

 appearance and mode of locomotion they repeat a series of types of 

 different mammalian orders. The Wombats represent the Rodents, 



i;s:i The pelvis and 



jidjoining parts of 

 vertebral column 

 Mud-opus. Jl, Ilium ; 

 Pubis ; Jx, Ischium ; 

 Marsupial bones ; 



the 



of 



Pit, 



.!/. 



A, 



Aeetsibuhim ; .V, the two 



Vi'l'tC'lirir. 



FIG. 684. , Femal e generative organs of H<ilmafnrin> 

 (after Gegenl iaur) ; Or, Ovary; T, Oviduct; ?", 

 Uterus ; 0, Mouth of uterus ; T* Vagina ; B, 

 Csecum of vagina; Ur, Ureter; H, Urinary 

 bladder; M, opening of bladder into the uro- 

 genital sinus (N). I, Bifid penis of DideljiJiys 

 filiiliiatlfr (after Otto, from Gegenbaur) ; E the two 

 halves of the sjlans. 



the fleet Kangaroos, which move by huge bounds, correspond to the 

 Ruminants, and represent, in a certain degree, game, which is absent 

 in Australia. The flying Marsupials (Pi't.nrns) resemble the flying 

 Squirrels (Pteromt/s) ; the climbing Phalangers (PJialangista), in 

 their shape and mode of life, recall the Lemurs (Lemur] ; while 

 other-s, as the Peramelidw, show a likeness to the Shrews (Soricidce) 

 and Insectivores. Finally, the carnivorous Marsupials approach in 

 their dentition to the true Carnivora as well as the Insectivora, to 

 which they scarcely yield in the large number of their small incisor 

 teeth and tuberculated molars. 



