262 Annals of the Carnegie Museum. 



Explanation of Plates. 

 Plate VII. 



Skull of young Titanothere (No. Ii6) seen from left side, one fourth natural size, 

 na, nasal ; fr, frontal ; la, lachrymal ; mx, maxillary ; pmx, premaxillary ; ma. 

 malar ; sq, squamosal ; pa, parietal ; x, free portion of paramastoid ; ep, epiphysis 

 of condyle ; po, paroccipital process ; pm, paramastoid ; pt, posttympanic process ; 

 pg, postglenoid process. Deciduous and permanent dentitions indicated by the usual 

 symbols. 



Plate VI II. 



Superior view of same skull (No. Ii6) one fourth natural size, iof, infraorbital 

 foramen ; ip, interparietal process of supraoccipitals ; so, supraoccipitals. Other 

 letters as in Plate VII. 



