CHAPTER XII. 



THE HIND LIMBS. (Continued.) 

 (Plates XLVII-LVI.) 



The hind feet in the iJmocerafa were considerably smaller than those 

 in front. Their component parts are short and robust, forming together a 

 strong support fur the massive hind limbs. Tiiere were tive digits, as in 

 the Proboscidians, and the axis of the foot was through the third, or 

 middle, digit. 



The general appearance of the hind foot in Diiioceras mirahile is 

 represented in Plate LIV, figure 2. The fore foot, or manus, is 

 seen in figure 1 of the same Plate, and both feet are shown in difterent 

 positions in the restorations. Plates LV and LVI. 



The Tarsal Bones. 



(Plates XLYII-L, Plate LIV, figure 2 ; and woodcuts 

 139-146, below.) 



There are seven well developed tarsal bones in the Dinocerata, and 

 their relative position in the hind foot is seen in Plate LIV. These bones 

 are described in detail below. An eightli tarsal bone, the tibiale, appears 

 to have been present. 



