DINOCERATA. 



Sternum of Dinoceras mirabile, Marsh. 



One-fourth Natural Size. 



Page. 

 133 



Fig. 1 .—First segment ; lateral view, seen from the left, 



Fig. 2. — The same ; superior view, , o.. 



Fig. 3. — The same; inferior view, . o.. 



Fig. 4.— Second segment; lateral view, seen from the left,. ^3^ 



Fig. 5. — The same; superior view, ^ ., , 



Fig. 6. — The same; inferior view, , ,, , 



Fig. 7.— Third segment; lateral view, seen from the left, 134 



Fig. 8. — The same ; superior view, -, ., , 



Fig. 9. — The same; inferior view, ^ 



Fig. 1 0.— Last segment ; lateral view, seen from the left, I34 



Fig. 11. — The same; superior view, ... ^ o< 



Fig. 12. — The same; inferior view, -. o , 



