559 



SUINA. 



Molars bunodont, bearing, when unworn, cone-like tubercles, 

 and exhibiting when worn a pattern not arranged in crescents. 

 Not ruminant. Third and fourth metapodials not completely 

 united to form a cannon-bone (fig. 157 c, p. 480). Upper incisors 

 present. 



Only one family is represented in India. 



Family SUID^E. 



An elongate snout, terminating in an expanded, truncated, 

 nearly naked, flat disk containing the nostrils. Feet narrow ; 

 four completely developed toes in each, the hoofs of the outer 

 two not reaching the ground in the ordinary walking position. 

 Teeth variable in number. Incisors rooted. Upper canines 

 curving more or less outwards and upwards. Stomach simple. A 

 caecum present. 



The family of the pigs is distributed throughout the greater 

 part of Europe, Asia, and Africa. These animals are amongst the 

 least specialized of living Ungulates and are represented by a great 

 number of extinct species, extending back to the Miocene and 

 Upper Eocene. In Indian Pliocene and Pleistocene beds six or 

 seven species of Sits alone are found, one of them the largest of 

 known pigs, besides species of Hyotherium, Hippohyus, &c. In 

 addition to members of the Suidce, numerous forms are met with 

 that tend to unite the non-ruminant Suina with the ruminant 

 Pecora, especially pigs with selenodont molars (Anthracotherium 

 &c.). Amongst the most remarkable pig-like forms is Tetraconodon, 

 an animal about the size of a tapir with enormous conical pre- 

 molars. 



The Indian living species belong to the typical genus. 



Genus SITS, L. (1766). 

 Syn. Porcula, Hodgson (1847). 



The complete dentition of the Eutheria is present : i. g-, c. j^ 

 pm. J=|, m. ?=?. Upper incisors diminishing rapidly in size 

 from the median pair to the outer. Lower incisors long, narrow, 

 projecting almost horizontally. Canines (tusks) greatly developed 

 in males, rootless, both upper and lower curved outwards and 

 projecting from the mouth in males, the upper turned upwards. 

 Teeth of molar series increasing in size and complexity from the 



