76 NOTOG^EA AND ARCTOaffiA. [CH, II 



Ungulata. Ganoid fishes are not found outside it. On 

 the other hand the southern region has all the Ratitse 

 (except Struthio), the Tinamous, the American Vultures 

 (Cathartidse), the bulk of the Pigeons and the Parrots 

 including the most peculiar forms of both, and nearly all 

 the TrochilidsB and Aptenodytidae. Such remarkable and 

 isolated types of birds as the Palatnedeidse, Psophiidse, 

 Cariamidse and Opisthocomidse are also confined to it. 

 Among Mammals it is characterised by the Marsupialia, 

 the Platyrrhine monkeys, the Monotremata, and most of 

 the Edentata. It is poor in Ungulata. 



This region of Notogsea is again divided by Prof. 

 Huxley into three divisions, which he names Austro- 

 Columbia, Australia and New Zealand. 



The most obvious criticism to apply to these, and 

 which has been applied, is that they are quite out of 

 proportion ; this is particularly the case with New Zealand, 

 which has so few types of great importance as compared 

 with Austro-Columbia. I do not however enter into any 

 detailed criticism since the actual way in which the earth 

 is divided up is so largely a matter of convenience — as is 

 admitted on all hands. 



Other suggested regions. 



Some have wished to make a separate region of Mada- 

 gascar, which has unquestionably a large number of 

 peculiar types. Arctic and Antarctic regions commend 

 themselves to many. 



Quite the most unsatisfactory region, in my opinion, 



