PLATE XVI. 



PAGE 



Figs. 1-5. Pleuroccelus najjus Marsh 188 



1. Left alisphenoid, outer view. X %. Near Muirlvirk. (5668 U. S. 



N. M.) 



2. Middle caudal vertebra, x %• Near Muirkirk. Outer and supe- 



rior views. (4970 U. S. N. M.) (After Marsh.) 



3. Front, side, and rear views of proximal caudal vertebra. X %. 



Near Muirkirk. (5639 U. S. N. M.) (After Marsh.) 



4. Front, side, and rear views of distal caudal vertebra. X V2- Near 



Muirkirk. (5372 U. S. N. M.) (After Marsh.) 



5. Rear, proximal, distal, and side views of humerus. X %. Near 



Muirkirk. (2263 U. S. N. M.) (After Marsh.) 



