THE TROPICAL FOREST 109 
already described in temperate forests, are also found 
in tropical ones, the squirrels reaching their maximum 
number in the Malayan region. India and the adjacent 
regions have large flying squirrels belonging to the 
'y 
« 
Caen + 
s 
rt? 
ras Yee 
¥ 
pe 
é 
Fic. 28. Elephant in teak forest, Upper Burma. The position 
brings out the peculiarities of the hind-limbs, which are very different 
from those of cow or horse. Note especially that the long, straight 
thigh is not bound down by skin as in the horse, and the true knee 
appears to be very low down. (Photo by Col. Couchman.) 
genus Pteromys, but Africa has forms which belong to 
quite a different family (Anomaluridae). The Latin 
name is given on account of the peculiar tail, which 
has overlapping horny scales on its under surface near 
the base, stated to be used in obtaining a hold on the 
bark when the animals are climbing trees, and thus 
