1921] Merriam-Stock : Notes on Peccary Remains 15 



Length of diastema between C and P 3 36.7 



Least distance between alveolar borders of lateral incisor and canine.. 20.3 



Height of canine tuberosity 36.7 



</, approximate. 



Measurements of Superior Dentition 



Length, anterior end of alveolus for medial incisor to posterior side of 



M2 162 mm. 



Length, anterior side of canine to posterior side of AP 134.4 



Length, anterior side of P- to posterior side of M- 82.2 



Length of premolar series, P- to P 1 inclusive 32.8 



Length of molar series 50 



Superior canine, anteroposterior diameter «15.5 



Superior canine, transverse diameter 8.4 



P-, anteroposterior diameter 9.2 



P 2 , transverse diameter 10 



P 2 , anteroposterior diameter 11.4 



P-, transverse diameter 12.4 



P 4 , anteroposterior diameter 11.5 



P* transverse diameter 14.2 



Mr, anteroposterior diameter 14.5 



M 1 , transverse diameter 13.4 



M-, anteroposterior diameter 18.8 



M-, transverse diameter 15.7 



M-, anteroposterior diameter 17.3 



M a , transverse diameter 15 



a, approximate. 



Limb Elements 



A proximal portion of the fused radius and ulna (fig. 5) agrees in 

 size with Platygonus leptorhinus so far as this is indicated by the 

 preserved specimen from Rancho La Brea. A fourth metacarpal, no. 

 4403 (fig. 6), is slightly shorter than the corresponding element in 

 P. leptorhinus. The metapodial exhibits a small facet along the inner 

 proximal margin for the third metacarpal. A small contact surface 

 was possibly present at the proximo-lateral end which is now broken 

 awaj r . A single astragalus, no. 24066, Univ. Calif. Coll. Palae. (fig. 7), 

 is somewhat smaller than the corresponding element in P. leptorhinus. 

 This specimen possesses proportions similar to those of the astragalus 

 in the Kansas species. An ungual phalanx (figs. 8a, 86) presumably 

 belongs to this dicotyline species from the asphalt deposit. In shape 

 it much resembles the toe bones of Platygonus. The ventral surface 

 is broad and flat. In lateral aspect (fig. 8a-) the dorsal surface is seen 

 to be inclined at an angle of approximately 27° to the horizontal plane 

 of the ventral surface. 



