60 ARKIV FÖR ZOOLOGI. BAND 14. N:0 4. 



others, but tbinner and with a sbarper edge tban in the 

 otbers, in which tbey are more massive, and bluntly rounded 

 off exteriorly. Tbe plane of tbe lower side of these flanges 



Fig, 4. Palatal aspect of the skull of Dicotyles pecari 

 from Paraguay. 



converges in tbe Ecuador skull witb tbe palatal plane, so 

 tbat botb merge into each otber about balf way between 

 tbe foremost premolar and tbe canine, but anytbing like 

 tbat does not take place in tbe otber skulls. Tbe greatest 

 breadth across tbese palatal flanges is in tbe Ecuador skull 

 on a level witb tbe foremost portion of tbe first present 



