EXPLANATION OF PLATE XXV. 



ODOCOILEUS SINALO^; Allen. 

 Specimens (females in fourth to sixth year) all collected at Escuinapa, 



Sinaloa, Mex. Figures \ nat. size. 



FIG. 5. No. 24555, 9 > 4^h Y ear or older. Dorsal view: nasals rather 

 long and rather narrow deficient on lateral border of middle, etc. 



FIG. 6. No. 24531, 9 , 4th year or older. Dorsal view showing especially 

 the unusually short and unusually broad nasals. 



FIG. 7. No. 24550, 9 , 4th year. Dorsal view, showing very narrow and 

 exceptionally long nasals, irregularly convex on the posterior border and 

 deeply double-emarginate on the anterior border. 



FIG. 8. No. 23878, 9 , probably of 5th or 6th year, with canines. Dorsal 

 view, showing nasals of about average size and form, with strongly convex 

 posterior and deep double emargination of front border. 



