1905.] 



CLAVICLE OP DIPLODOCUS. 



291 



there are sevei-al points to be brougiit foi-ward against tlie theory 

 of its clavicular natui'e. 



Firstty, it must be remembered that in one case this problematical 

 bone, like the greater part of the skeleton, was displaced and that 

 in the second skeleton, as pointed out by Dr. Holland, the femur 

 bears tooth- marks of carnivorous Dinosaurs. In consequence of 

 this the relative position of the bone cannot prove anything for 

 or against its being an os penis ; for the penis would be one of the 

 first parts of the body to become displaced by decomposition and 

 the first part that would be torn away if carnivorous animals 

 were gnawing at the dead body. 



Text-fig. 48. 



Diagram of penis of Striithio. 



Explanation of letters : — c.c, corpus cavernosum ; c.f., corpus fibrosum ; c.sk., coarse 

 skin; g., gutter; gl., glans-like part; m., muscles. 



Secondly, in each of the two pretty complete skeletons that 

 comprised this bone, only one example was present, and this one 

 appeared to belong to the same side of the body. In other 

 specimens of Diplodocus tlie element was altogethei" wanting. 



