Contributions to Canadian Palaeontology 385 



large portion of the tail of another individual of similar 

 size was found at the same locality, and can be used to 

 take the place of the missing vertebra. 



"The specimen is in an excellent state of preserva- 

 tion as a whole, and is one of the most complete of the 

 skeletons of Trachodon mounted in the museums of this 

 continent. ' ' 



Styracosaurus, gen. NOV. 



Styracosaurus Albertensis, sp. nov. is described in 

 the second paper: "The skull of this species is remark- 

 able for the largeness of the nasal horn-core, the remote- 

 ness of the same from the acute rostral apex, and for the 

 great development of backwardly directed spike-shaped 

 processes on the posterior margin of the coalesced parie^ 

 tals. 



"The name selected for this genus has reference to 

 the shape of the large processes on -the frill, which re- 

 sembles spikes, and must have made this bristling reptile 

 in life a veritable moving cJievanx de frise. 



"This specimen brings to light an entirely new phase 

 of frill development which is unique among the horned 

 dinosaurs. Tt may be regarded as one of the most com- 

 plete and best preserved of the Ceratopsian skulls hither- 

 to discovered in Cretaceous deposits of this continent." 



Referring to the contents of the third paper, it is re- 

 marked : "An unusually perfect skeleton of a carni- 

 vorous dinosaur, lately added to the collection of the 

 Geological Survey, is of special interest on account of 

 the preservation in it of one of the front legs. The 

 specimen * * * * forms part of the very large 

 collection of reptilian and other remains made last sum- 

 mer by the Vertebrate Palasontoligical party, which ex- 

 plored the rich dinosaur beds below Berry Creek. 



"The structure of the fore-limb in the large carni- 

 vorous dinosaurs of the Cretaceous has been to a great 

 extent conjectural. In this new specimen the right limb 

 is preserved, and it is hoped that the left one will be re- 



