42 THE NOTOG^IC REALM. [CHAP. 



Much discussion has taken place with regard to the date of 

 introduction of the native dog, or dingo ( Canis dingo] 



Carnivores. . ,. . . -jj^i^-j. 



into Australia, and it was long considered that it 

 was imported by human agency. Seeing, however, that its remains 

 have been found in association with those of extinct kangaroos 

 and Diprotodon, there seems considerable probability of its being 

 an indigenous inhabitant of the country l . 



The only other non-volant mammal found in the Australian 



region is a species of pig (Sus papuensis). This 



animal is, however, so closely allied to certain 



Malayan species that it seems quite possible that its introduction 



may be due to human agency. 



The Australian region contains representatives of all the families 



of Bats with the exception of the Neogaeic Phyllo- 



stomatid(z\ some of the genera, such as the tube- 



nosed bats (Uronycteris*}, among the Pteropodida, being peculiar 



to this and the Austro- Malayan region, while others are more or 



less widely spread, or even cosmopolitan. It will be unnecessary 



to mention the various genera by name ; but the affinity of the 



Notogaeic Chiroptera to those of Eastern Arctogaea, as exemplified 



by the abundance of fruit-bats (Pteropodidce) and the absence of 



the PhyllostomatidcR) is noteworthy. 



In the following synoptical list the higher groups and genera 

 (exclusive of Bats) peculiar to the Notogaeic realm 

 are printed in italic type ; the letters A, P, and M 



Papuan following the names respectively indicate that the 



Genera. 



groups in question occur in Australia (inclusive of 

 Tasmania), New Guinea (with the adjacent Papuan islands), or the 

 Austro-Malayan region ; extinct groups have an asterisk prefixed. 

 I. MONOTREMATA. 

 Ornithorhynchidce, A. 

 OrnithorhynchuS) A. 

 EchidnidcB, A. P. 



Echidna, A. P. (The living species common to 



both areas.) 

 Proechidna, P. 



1 See Ogilby, "Catalogue of Australian Mammals," Sydney, 1891 92. 



2 This name replaces the preoccupied Harpvia. 



