246 Prof. 0. C. Marsh — Gigantic Ceratojmdce. 



14 15 16 



25 



Fig. 14. — Terminal phalanx of manus of Tricerato^js Jiahellatus, Marsh ; front 

 view ; one-fourth natural size. Figs. 15 and 16. — Side and back views of same. 



Fig. 17. — Metatarsal of Triceratops prorsiis, Marsh; side-view; one-eighth 

 natural size. Figs. 18 and 19. — Front and side view of same. 



Fig. 20. — Ungual phalanx of Triceratops horridus, Marsh ; front view ; one- 

 fourth natural size. Fig. 21.— The same; side view. Fig. 22. — The same; 

 posterior view. 



Fig. 23. — Dermal spine of Triceratops ; side view ; one-eighth natural size. 



Figs. 24 and 25. — Front and top views of same. 



Eebatum. — In Geol. Mag. May No. pp. 195, 196, 197, 199, for Triceratops 

 '■pm'osus,'' read Triceratops prorsus, iVIarsh. — Edit. Geol. Mag. 



