CONDYLARTHRA. 395 



of the succeeding cervicals, although slightly convex in front in vertical 

 section, are concave in transverse section. The transverse diameter exceeds 

 the vertical in the third vertebra more than in the sixth, where it is still, 

 however, greater than the transverse. The inferior faces of all the centra 

 are smooth and a little convex, and a little oblique to the vertical diameter, 

 indicating the anterior elevation of the neck. Posterior to the third, the 

 centra become a little concave transversely on the posterior side, but some 

 of the epiphyses are lost. The bases of the neurapophyses are nearly 

 round. On the fourth cervical the postzygapophysis looks almost entirely 

 outwards. The diapophyses are round at the vertebrarterial canal, while 

 the parapophyses are flat at the same position. 



The cervical vertebrae just described are from No. 3. Two proximal 

 caudals accompany the same. The latter are robust, and have plane articu- 

 lar extremities. They have also complete neural arches, one with, the other 

 without, spine. The bases of the diapophyses spread anteriorly into ridges, 

 which nearly reach the anterior edge of the centrum. Inferior face convex 

 in the middle transversely, concave longitudinally, the convexity spreading 

 posteriorly into two angles for base of supposed chevron bone. No. 4 ex- 

 hibits a more distal caudal. It is large and has elongate proportions. This 

 specimen evidently had a long tail. Unfortunately no dorsal vertebrae have 



been preserved. 



Measurements of caudal vertebra. 



No. 3. 



M. 



Diameter of centrum behind \ . „^^ 



( transverse 016 



Elevation with neural spine 019 



Length of second centrum 019 



„. , ■ f .(vertical 012 



Diameter in front < „,. 



( transverse OlS 



Total elevation 016 



_. ^ . , , . ,< vertical 0135 



Diameter centrum behind < , „,,. 



( transverse 01b 



No. 4. 



Length of centrum of caudal vertebra 029 



Width of centrum at extremity 025 



Width of centrum at middle 012 



Depth of centrum at middle 010 



The glenoid cavity of the scapula is rather narrow. Its posterior bor- 

 der is regularly rounded, while the lateral borders converge rapidly to an 



