EXPLANATION OF PLATE XXIV. 



ODOCOILEUS SINALO^E Allen. 



Lateral view of the specimens shown in Plate XXIII. 

 Figures \ nat. size. 



FIG. ia. Same specimen as Fig. i, Plate XXIII. Lateral view, showing 

 a very small and unusually-shaped lachrymal fossa, due to an exceptional 

 posterior extension of the superior maxilla. 



FIG. 2a. Same specimen as Fig. 2, Plate XXIII. Lateral view, showing 

 the apposition of premaxilla and nasal; lachrymal fossa of medium size and 

 form. 



FIG. 30. Same specimen as Fig. 3, Plate XXIII. Lateral view, showing 

 nasal and premaxilla broadly in apposition, small lachrymal fossa, and the 

 presence of canines. 



FIG. 40. Same specimen as Fig. 4, Plate XXIII. Lateral view, showing 

 nasal and premaxilla widely separate, exceptionally large lachrymal fossa, and 

 vertically narrow nasals. 



