64 
GUIDE TO TBE 
Zebra Boom. 
Here are mounted examples of most species and 
races of Zebras, from tbe now fully extinct Quagga 
{Equus qmgga), the beautiful Mountain Zebra {E. 
zebra), now only to be found in preserved places, 
to the better known Equus hurchelli, Equus ckap- 
mani, and others of that group, as well as the large 
Somaliland Zebra (E. grevyi). Also a Wild Ass 
from Somaliland and the rare Kiang {Equus hemionus') 
are to be seen. 
In the middle of this room we find a case with 
Pigs (Suidae). 
Among these we find Sus proper, the Wild Boar 
(/S', scrofa), the ancestor, or at least one of the ancestors, 
of our domestic Pigs. More interesting, though not 
better-looking, are the Wart-Hog {Phacochoerus') of 
Africa, the Babirusa {B. alfurus) of Celebes, and the 
very rare (in collections) Potamochoerus edwardsi of 
Madagascar ; while in Dicotyles of South America 
and Porcula salmnia of the Himalayan Terai forests 
we find more diminutive forms. 
Another case displays a large individual of Budor- 
cas taxicolor sinensis, a geographical race of the 
Takin from the Mishmi Hills, north of Assam, and 
this brings us to the 
