194 MAEINE EEPTILES OE THE OXFOED CLAY. 



The vertebrae are for the most part crushed, so that the following measurements can 

 be only partly accurate : — 



, • Middle First Posterior Anterior Vertebra at the curve Vertebras at 



cervical. dorsal. dorsal, caudal. of the tail. end of tail. 



1. 2. ~3? 



Length of centrum in 



mid-ventral line . . 2-9 2-9 3-2 3-6 3-3 1-8 1-3 1-5 1-7 13 



Width of posterior face 



of centrum ... 1-9 2-3 2-5 2-3 2-4 1-6 1-4 1-5 0-6 0-5 



Height of posterior face 



of centrum ... 2-5 2-3 .. 2-5 2-6 2-0 1-9 1-9 1-2 0-8 



Height to top of neural 



spine .. .. .. 6-8 33 4-5 4-4 



The length in the middle dorsal line of the centra of the second and third caudal 

 vertebrae at the curve of the tail is 2 - 2 and 23 respectively. 



Shoulder-girdle (text-fig. 69, B) : 



Coracoid : length 4 - 9 



width of distal expansion 3-0 



„ neck 1-0 



Scapula: length 6 - 



width of articular end ]*8 



,, middle of shaft 0-6 



„ upper end 0*8 



Humerus (text-fig. 69, B) : length 4-3 



width of head 1-0 



„ at deltoid crest 1-3 



Hind limb (PI. X. figs. 3, 4) : 



Femur : length in straight line 17'8 



greatest width of head 3*1 



long diameter of the middle of the shaft .... 1-9 



width of condyles 1-9 



Tibia: length 6-8 



width of upper end 2-2 



„ lower end 1*5 



Fibula: length 6-8 



width of upper end 1-7 



„ lower end 1-5 



Astragalus : width 2'1 



length 1-3 



Calcaneum : width 2-0 



length 1-3 



First metatarsal : length 5-7 



width of upper end 2-2 



Second metatarsal : length 6-2 



Third metatarsal : length 6-5 



