CEYPTOCLEIDUS OXONIENSIS. 201 



Scapula : length in a straight line from median border to tip 



of dorsal ramus (exaggerated by crusliing) . . 26'2 



length of glenoid surface 5-4 



„ surface for coracoid 7'8 



antero - posterior diameter of coraco - scapular 



opening ll'ij 



lateral diameter of coraco-scapular opening . . . 10'4 



Coracoid : length 42-7 



width of united coracoids at posterior angle of 



glenoid cavity 40-0 



■width of the united bones at narrowest .... 28'8 



E. 2465. Left scapula of a half-orown individual. Noticed in Ann. Mag. Nat. Hist. [6] vol. xv. 

 (1895) p. 340. In this specimen the backward prolongation o£ the median ramus had 

 not yet reached the anterior prolongation of the coracoid, and in the middle line there 

 must have been a wide V-shaped opening between the two scapulae, so that the clavicles 

 were still extensively exposed on the ventral surface. 



E. 3705. A series of fourteen posterior caudal vertebrae of an adult individual. These specimens 

 are shown in text-fig. 85. In the anterior vertebrae of the series the neural arch seems 

 to have fused with the centrum, but although the caudal rib is firmly united, the suture 

 does not seem to have been obliterated ; further back both arch and ribs are free. 

 Both the anterior and posterior pairs of facets for the chevrons are well developed, but 

 the latter are the larger ; they seem to continue to the extreme end of the tail, as also 

 do the neural arches, while, on the other hand, probably the last four or five centra do 

 not bear ribs. 



The dimensions (in centimetres) of this series of vertebrsBj numbering them from 

 before backwards, are : — 



Caudal Tertebrce 1. 2. 3. 4. 5. G. 7. 8. 9. 10. 11. 12. 13*, 14. 



Length of centrum in mid- 

 ventral line 3-2 3-0 3-0 ? 3-0 2-4 2-5 2-2 2-1 1-S 1-G 1-5 1-7 



Width of posterior face of 



centrum 5-1 5-0 4-6 4-1 4-1 3-8 37 3-3 3-0 2-9 



Height of posterior face of 



centrum 4-2 4'1 3-9 ? 3-6 3-5 .3-0 2-7 2o 2-4 .. .. 1-4 



Height to top of neural 



arch 8-5 7-4 6-9 o'S 5'0 . . 4-1 



The last two or three centra are fused together, so that satisfactory measurements of them 

 cannot be made. The terminal centrum is wanting. 



E. 3703 (Leeds Coll. 174). Nearly complete left hind paddle (text-fig. 93). 

 The dimensions (in centimetres) of this specimen are : — 



Total length of paddle 9S-0 



Femur: length 30'2 



width of head 8-8 



2d 



