50 



GREAT GAME ANIMALS. 



are found in the depths of the Semliki, or Ituri, forest and its north- 

 ward extension. Their nearest ally is the extinct Samotherium 

 (1257); of the Tertiary rocks of Samos and Greece (fig. 37), the 

 males of which are also furnished with a pair of simple horns. 

 On the other hand, in the males of the extinct Indian Siva- 

 therium (1258), Bramatherium, and Hydaspitherium (1259) the 

 horns are branched ; Sivatherium having in addition a pair of 



Fig. 37. 



Side View of the Skull of Samotherium boissieri, an extinct Ruminant from 

 the Pliocene of Samos, nearly allied to the Okapi. 



small simple horns low down on the forehead. Casts of the 

 skulls of two of these gigantic Ruminants are exhibited in the 

 East Corridor, alongside the Giraffe-case. Helladotherium, of the 

 Tertiary of Greece^ seems to have been hornless. The Okapi is 

 represented in the Corridor by the two strips of skin sent home 

 by Sir Harry Johnston, on the evidence of which the species 

 " Equus johnstoni " was named, as well as by the complete skin 

 of a female forwarded by the same gentleman from the Semliki 

 Forest (fig. 36). The cast of a male skull is also shown. 



[Lower The Deer Tribe. Tlie • Deer or Cervi ^ are distinguished from the 



aSS Family Cervida'. other 7 mbers ° f \ he < see ™ e 18 > ^ the 



J J appendages on the head, when present, taking the 



form of antlers ; the nature of which is fully explained on page 2. 

 Except in the Reindeer, these are present only in the males, and 

 are always periodically shed. When antlers are wanting, the upper 

 canines of the males are always long and tusk-like, as in the Musk- 



