328 



Synopsis of the Genera. 



.. Typical Swine (Stjina). Cutting-Ueth f; intermaxillary short; 

 diastema between the cutting-teeth and grinders short ; canines thich, 

 spread out ; the sheaths of the upper canines spreading out and then 

 hent up at the end; premolars j . f ; molars | . |. 



Wild Swine. Face eUmgate. The ears erect, moderate, hairy. Colour 

 uniform or grizzled; young yellow, streaked. Skull elongated ; facial 

 line straight ; forehead convex. 



1. StTS. Ears ovate, hairy. Tail moderate, tufted at the end. 



Skull — nose convex, rounded and smooth on the sides above ; 

 concavity on the cheeks reaching to the edge of the orbit. 

 Male with a ridge across the upper part of the base of the 

 sheath of the canines. 



2. PoRCTjLA. Ears ovate, hairy. TaU rudimentary. Skull— nose 



tapering, rather thickened on the edge in front of the orbit. 

 Canines small, spreading ; upper not recurved, without any 

 ridge on the sheath. 



3. PoTAMOCHCEEtrs. Ears elongate, tapering, acute, and pencilled 



at the tips. TaU thick, high up on the haunches. Skull — 

 nose flattened above and rather thickened on the upper edge ; 

 concavity of the cheeks separated from the orbit by a broad 

 ridge. Males with the upper edge of the nose warty in front, 

 and with a large process from the upper part of the sheath of 

 the canine tooth. Females with only a ridge across the base 

 of the sheath of the canines. 



Domesticated Swine. The ears more or less dependent, often very large. 

 Colour black, white, or variegated; young like parents. Skull short; 

 facial line sunken ; forehead and top of nose flat ; nose margined on the 



4. ScKOFA. Face smooth or nearly so. Sheath of upper canine 



with a longitudinal ridge at the base. 



5. Centxtriosus. Face strongly concentrically wrinkled. Sheath 



of upper canine with a large rounded tubercle at the base. 



B. Abnobmal Swine (BABratrssiNA). Cutting-teeth f ; intermaxilla, 

 and maxilla in front, forming a large diastema between the cutting- 

 teeth and grinders; canines erect, parallel; the sheaths of the upper 

 canines bent up from the base, and closely applied to the side of the jaw ; 

 premolars f . f, the front ones early deciduous. 



6. BABIRtrSSA. 



A. Typical Swine (Suina), Cutting-teeth f (the aider upper rarely 

 deciduous) ; intermarilla short ; diastema between the cutting-teeth and 

 grinders short; canines thick, spreading out on sides of head; sheath 

 of upper canine spreading out and beni up at the end ; premolars i- . 4. 

 —Gray, P. Z. S. 1868, p. 22. 



The depression in the skuU behind the hinder nasal opening is 

 without any pits on the sides behind. 



