THE HIND FEET. 157 



These faces may all be considerably shorter and broader than in the 

 specimen figured, and the face for the entocuneiform may be very greatly 

 reduced. 



The following measurements of three specimens of the navicular in 

 Dinoceras show the more imiiortant dimensions of this bone : 



Measurements of Left Nmiicidar. (Dinocerns mlrahUe, No-. 1247.) 



m. 

 Transverse diameter of navicular, .085 



Antero-posterior diameters (axial), . .015-029 



Transverse diameter of face for astragalus, _. . .080 



\'ertieal diameter of face for astragalus, .060 



Transverse diameter of face for entocuneiform, 020 



Vertical diameter of face for entocuneiform, _. ._ .050 



Transverse diameter of face for mesocuneif orm, . ... .025 



Vertical diameter of face for mesocuneiform, .045 



Transverse diameter of face for ectocuneiform, ._ .035 



Vertical diameter of face for ectocuneiform (ap])roximate), .. .055 



Measurements of Lfft Kameular. {Dinoceras mirahile, No. 1208.) 



m. 



Transverse diameter of navicular, . . .067 



Antero-posterior diameters, . .015-.025 



Vertical diameter, .._ _. .069 



Transverse diameter of face for astragalus, . . .058 



Vertical diameter of face for astragalus, .05 1 



Transverse diameter of face for entocuneiform, .022 



Vert ical diameter of face for entocuneiform, ... .033 



Transverse diameter of face for mesocuneiform, .026 



Vertical diameter of face for mesocuneiform, .043 



ransverse diameter of face for ectocuneiform, _ .. . 032 



Vertical diameter of face for ectocuneiform, .040 



Men sure) nents of Left N^avicular. {Dinoceras mirabile, No. 1218.) 



m. 



Transverse diameter of navicular, .082 



Antero-posterior diameters, . .. .015-.022 



Vertical diameter, .. .. ..._ _ -065 



Transverse diameter of face for astragalus, .065 



Vertical diameter of face for astragalus, .050 



Transverse diameter of face for entocuneiform (approximate), _ .012 



Vertical diameter of face for entocuneiform, 028 



Transverse diameter of face for mesocuneiform, .029 



Vertical diameter of face for mesocuneiform (approximate), . .045 



Transverse diameter of face for ectocuneiform, 037 



Vertical diameter of face for ectocuneiform, ...". 052 



