TALIGRADA. 607 



The vertebrce \ireserved include two cervicals, six dorsals, two lumbars, 

 and two caudals. The centra increase regularly in size to the lumbars. 

 Their articular faces are distinctly biconcave, except those of a median 

 distal caudal, where their convexity exceeds the median concavity. 



The cervicals are rather short, having proportions like those of Cory- 

 phodon and various carnivorous animals. The centra are wider than deep, 

 and the posterior concavity is greater posteriorly than anteriorly, and is 

 surrounded by the thickened edge of the centrum. Below the parapophysis 

 the inferior face is concave, and each fossa diverges outwards, leaving the 

 median plane wider beliind than before. In the vertebrje preserved there 

 is no liypapophysial keel. In a sixth or seventh cervical tliere is no ver- 

 tebraterial canal, unless it perforate the "transverse process" at a distance 

 from the centrum. A stronof groove from the neural canal excavates the 

 superior side of the parapophysis and turns anteriorly to where it is broken 

 ■off. A capitular rib-fossa is not distinct, hence I am not sure that this cen- 

 trum is the seventli. 



In the first three dorsals preserved, which represent the more important 

 part of the thoracic region, the posterior articular face is more concave than 

 the anterior. In the posterior of these, the anterior costal facet is larger 

 and more distinct than the posterior. In the two others the posterior is 

 large, and the anterior is not to be seen, and is probably wanting, although 

 the centra are somewhat injured at that point. These three dorsals are of 

 different dimensions, showing a rapid increase posteriorly. None of them 

 have inferior keels or fossae, but the first has a median angle. In the third the 

 breadth is greater in relation to the length than in the first ; and the second 

 is intermediate. In the remaining three dorsals the increased width is re- 

 tained, and the length increases. The centra become more depressed, and 

 more excavated below the diapophyses The middle line becomes more 

 prominent in the fifth and sixth. The bases of the diapophyses are narrow 

 and depressed. The costal facets are anterior, and present laterally. 



The best preserved lumbar is elongate and depressed, and the anterior 

 face is quite concave. It is not keeled below, and there is a considerable 

 nutritive foramen on each side of the middle line, which is connected with 

 the inferior base of the diapophysis by a shallow vertical wide groove. An 



