277 



Fig. 5, Plate XXXVI, represents one of the best preserved of the speci- 

 mens from the back of the series. In its present condition the centrum 

 beneath is 27 lines long, arid the ball and socket ends are about 16 lines in 

 depth and 2 inches in width. The neural arch between the ends of the fore 

 and aft zygapophyses measures 34 lines. 



Another similar specimen, represented in Fig. 4, exhibits distinct rudiments 

 of a zygosphenal articulation. The length of its centrum beneath is 33 lines. 



The shortest of the series of the dorsals measures beneath about 2 inches 

 in length ; the longest from the back of the series measures about 3f inches 

 in length. 



The same collection contains six specimens of cervical vertebrae, which 

 may perhaps belong to the same species, if not the same individual, as the 

 dorsals above noticed. The specimens are all distorted from pressure. One 

 of them is an axis without the odontoid process and the suturally connected 

 pieces of the atlas. The articular ball of the centrum is transversely hexa- 

 gonally oval, 1.2 inches wide, and scarcely 1 inch deep. 



Another cervical centrum, in some degree compressed from above down- 

 ward, is represented in Fig." 6, Plate XXXVI. It measures 1.9 inches in 

 length below and is 3 inches wide between the ends of the transverse 

 processes. 



Another specimen, represented in Fig. 7, probably a second cervical, is 

 nearly complete, but considerably distorted. Its measurements are as 

 follows : 



Iucbes. 



Length of centrum inferiorly 2. 00 



Length between fore and back zygapophyses 2. SO 



Height from hypapophysis to end of spinous process 3. 20 



Depth of posterior ball of centrum * 1. 55 



Width of posterior ball of centrum 1. 05 



Dr. Sternberg's collection further contains a number of specimens of 

 caudal vertebras, probably belonging to the same species as the former, and 

 apparently pertaining to two different individuals. There are twenty-six 

 specimens, all provided with diapophyses or transverse processes, and with 

 hypapophyses for chevron articulation. 



Figs. 8, 9, 10, Plate XXXVI, represent the first and last of a consecutive 

 series of four anterior caudals. The body of these has the length nearly as 

 great as the breadth and about equal to the depth. The neural arches arc 

 without zygapophyses, or exhibit mere rudiments of them. The articular 



