82 



This gives the totnl length to the animal of 43 feet 2 inches, wiiich, in- 

 creased by the amount taken up by intervertebral cartilages, will give roundly 

 about forty-five feet. Of this, twenty-two must be reckoned to the neck. 



. The cervical iicrtehrce are assumed to commence where the rib-pits cease 

 anil the continuous lateral processes commence. This point is ascertained 

 with difficulty on the specimen. It is, however, perhaps the same point where 

 tile hmgitudinal lateral ridge leaves the upper margin of the rib-pit; and it 

 was to the series of vertebrae which pass this point that the scapular bones, 

 the clavicle, and the coracoid were found attached. On the anterior dorsals, 

 the inferior margin of the rib-pit is most prominent, and is finally produced 

 into the flat, thin process which is directed obliquely downward on the cervi- 

 cals. Both these and the posterior ribs are crushed on the centra, and project 

 obliquely below them ; their mode of attachment is thus rendered rather ob- 

 scure. A similar structure exists in the posterior cervicals of Cimoliasaurus, 

 while, on the anterior dorsals, short, tiiick diapophyses support the ribs, The 

 proximal cervicals are remarkable for their compressed and elongate form. 

 They are, for a considerable distance, longer than any dorsals. The lateral 

 longitudinal ridge rises successively nearer to the neural arch and disappears. 

 The articular .surfaces are vertically oval, flattened above and below. The 

 inferior faces are slightly grooved in line with the venous foramina. These 

 vertebrae diminish in length, and, in front of the posterior third of the series, 

 materially in depth. They diminish to terminal ones of very small size. In 

 most, the decurved (?)parapophyses are broken near the base; but the l)asal 

 pnition of various lengths generally adheres. The}' are as wide as a rib and 

 scarcely half as thick. They have much greater antero-posterior extent on 

 tlie terminal than the proximal cervical centra, having a base five-sixths the 

 length of the latter. The zygapophyses have relatively a larger size on these 



