1044 
ME. J. W. HULKE OH THE OSTEOLOGY 
suggests that there may have been seven or eight vertebrae between the most anterior 
preserved in No. 39,460 and the head.* 
The correctness of this inference is demonstrated by the part of a skeleton in 
Mr. Foxs collection represented in the accompanying sketch (Plate 73). In close 
proximity to the mandible and shoulder*girdle is a continuous chain of nine vertebrae, 
proved cervical by the position of the capitular process (parapophysis). In the eighth 
vertebra in this chain this process is in the level of the neuro-central suture, and there¬ 
fore in the same position as in the most anterior of the seventeen vertebrae displayed 
in No. 39,460, and in the eighth cervical of Crocodiles. If to the seventeen vertebrae 
in this latter fossil seven are added for those missing from its neck, and we allow two 
or three for those in the loins hidden by the foot, the number of praesacral vertebrae will 
amount to twenty-seven or twenty-eight at fewest, exclusive of the atlas, which is still 
unknown. Of this number, reckoning as cervical all in which the capitular process is 
wholly or partly on the centrum, nine, exclusive of the atlas, belong to the neck. Of 
the others, if we reckon as lumbar all in which a short vertebral riblet, unconnected 
with the sternum, is attached by a single articulation to the end of a transverse 
process, six at fewest should be referred to the loins. The remaining ten or eleven 
belong to the dorsal region. The number of caudal vertebrae was considerable, probably 
not less than fifty. 
Cervical vertebra} (Plate 73, cv.cv'.; Plate 74, figs. l-8t).—These are opistho- 
ccelous. The contour of the anterior articular end is roughly shield-shaped; it is a 
rhomboid figure with the upper acute angle cut off and indented by the neural canal. 
The vertical and horizontal diameters of this end in the most anterior vertebra of 
No, 39,460 Brit. Mus. Cat. (Plate 74, fig. 4) are respectively 13 millims. and 
10 millims. In a corresponding vertebra in my own collection (Plate 74, fig. 7) they 
are 14 millims. and 11 millims. The sides of the centrum are deeply pinched in below 
the neuro-central suture; an expansion of the centrum towards the articular ends 
makes them concave in the longitudinal direction; below, they converge to a some¬ 
what acutely angular keel. All these vertebrae have a capitular process on the side 
of the centrum near its front. The position of this process ascends on the side of the 
centrum in passing from the front to the root of the neck. All have also a tubercular 
process (diapophysis) on the neural arch, placed just external to the prsezygapophysis. 
The articular surfaces of the praezygapophyses are directed upwards and inwards. 
The spinous process is quite dwarfed in the anterior cervical vertebrae, but at the 
root of the neck well developed. The postzygapophyses are a pair of long branches 
diverging from the back of the neural arch having the articular surface pn the under 
side of their free end. 
* Huxley, Th., Quart. Journ. Geol. Soc., vol. xxvi., p. 3, plate 1, 1870. 
f These vertebrae are better illustrated by tbe Mantel-Bowerbank fossil (Ho. 39,460 Brit. Mus. Catal.) 
than by any others I have seen. They are figured by E. Owen in “ British Fossil Beptilia,” Pal. Soc., 
vol. for 1855, plate i., figs. 2, 3, 4. 
