PROVINCIAL MUSEUM, HALIFAX, N. S. PERKINS. 141 



Vertebrae. It should be noticed that plate II shows the 

 vertebrae that were sent, very much reduced, except one, that 

 would have been the last, accidentally omitted by the photo- 

 grapher, arranged as nearly as possible in their natural position ; 

 but as more than half of the series are missing, the order must 

 at best be much broken. 



As will be seen, all are more or less imperfect as to the 

 processes. The centra are in very good condition. In only two 

 is the neural arch complete, and o'nly one neural spine remains. 

 The transverse processes, though badly broken, have fared 

 somewhat better, and! five or six of them are sufficiently whole 

 to indicate fairly well their original form. As would be 

 expected from the different form of the caudals, the above 

 remarks do not apply to the last three or four in the plate. No 

 cervicals have been seen a'nd the first four or five dorsals are 

 also wanting. 



Dorsal vertebrae. There are four dorsal vertebrae present. 

 That placed first is undoubtedly one of the anterior bones of the 

 series, but, as indicated, not one of the first. This is shown by 

 the evident carina on the under side. 



As shown in the top figure, plate III, the neural arch is com- 

 plete, but the transverse processes are nearly gone. On plate 

 III, this and other vertebrae are shown about one-third natural 

 size. From comparison with skeletons of recent individuals, it 

 is inferred that this bone was about the fifth or sixth in the 

 dorsal series. 



The body, or centrum, is- somewhat concave above and dis- 

 tinctly carinated below. It is, measured anteriorly, as are all 

 that follow, 60mm. (2f inches) wide, 52mm. (2 inches) high, 

 and 65mm. (2 9-16 inches) long. In this the neural canal is 

 much larger than in any of the vertebra that follow. It 

 is 48mm. (If inch) high, and 73mm. (2f inches) wide. The 



