282 DEEREETS CHAP. 
Fam. 4. Tragulidae—This family comprises a number of 
small Deer-like animals, which are really in many points more 
related to the Pigs than to the true Deer. They are known as 
Chevrotains ; and the term “ Deerlet,’ introduced by Professor 
Garrod, is certainly appropriate, since they have the aspect of 
very small and hornless Deer. If it were not for their Artio- 
dactyle feet one might ata glance confuse these creatures with 
some Marsupial type. The family is Oriental and West African 
in range. The two genera (whose individual peculiarities will 
Fic. 147.—Indian Chevrotain. Tragulus meminna. x 4. 
be considered later) differ from other Artiodactyles in a number 
of rather important characters. 
They are absolutely hornless in both sexes. The canines are 
present in both jaws, and are especially well developed in the 
upper jaw. The dental formula is 19 C+ Pm3M23. In the 
skull the tympanic bulla is usually, as in the non-ruminating ” 
Artiodactyles, filled with loose bony tissue. The feet (usually) have 
the four toes of the Suina, and are therefore in a more primi- 
tive condition than in Deer and Antelopes. But as the middle 
metacarpals are fused in 7ragulus (though separate in Hyomoschus) 
they are a stage further than are the Pigs, in the direction of the 
typical Ruminants. 
The stomach is comparatively simple, thus offering inter- 
