AM. JOURN. SCI., Vol. XIX, 1880 Plate IX. 
Figure 1.—Left ischium of cee ere ungulatus, Marsh ; side view, one-twelfth 
natural size; a, acetabulum; 7, face for union with ilium; p, margin join- 
size; ¢, posit fon of g 
_ trochanter; c, inner ; He 
F = 3.—Tibia and fibula ey Al limb; front view, same size; a, astragalus; 
sont 
Figure 4 tapodial bone of same animal; one-fourth natural size; a, side 
view; 3, ‘front view. 
eRe 
