37-i A*. «S\ Lull — SteyomuniN Knyulahis Marsh. 



Fkj. 10. 



Fig. 10. Model of Stegosaurus ungulatun, based upon tbe monnted skele- 

 ton. Left side bereft of the integument, showing the superficial muscula- 

 ture. Modeled by E. S. Lull. 



