216 ZOOGEOGRAPHICAL REGIONS 
NOTOGAEIC REALM. 
(5) NEOTROPICAL REGION. 
(6) AUSTRALIAN REGION. | 
Each of these regions may now be considered in 
a little detail. 
Beginning with the Hotarctic region, we find that 
the western or Nearctic section has no primates, and 
the eastern or Palaearctic only those species of Semnopi- 
thecus and Macacusalready mentioned (pp.77—8). Inthe 
Palaearctic section the sheep and goats are well repre- 
sented, but to the west they are few (cf. p. 82). Both 
sections have oxen. The antelopes are scantily repre- 
sented in both, while deer are abundant. ‘To the east, 
but notin the west, camels and horses occur. Elephants 
do not occur in either division, but both are rich in carni- 
vores. Among the special forms it is noticeable that 
the badger is peculiar to the Old World, while the 
Nearctic section shares the skunk and raccoon with the 
Neotropical region. In both divisions rodents are very 
numerous, but this is a fact which has already been 
sufficiently discussed. Among the insectivores the 
mole (Talpa) is a form peculiar to the Old World, 
where it extends into the Oriental region. 
The bird faunas of the two regions differ from each 
other somewhat markedly, but this is partly because 
both regions receive many seasonal immigrants from 
the hotter land-masses lying to the south of them. 
The differences also chiefly affect genera or even species, 
rather than orders or families. Two familiar families 
of the Old World are, however, absent in the New. 
Thus North America has no true starlings, their place 
being taken by the hang-nests or Icteridae, to which 
the rice-bird or bobolink (Dolichonyx) belongs. The 
