176 



MAEI^^: eeptiles of the oxfoed clat. 



median element. In the anterior of the two the inner ends of the inner pair of lateral 

 bones turn sharplj' forwards, and their extremities are closely adherent to the median 

 bone of the row in front. The inner ends of the inner elements of the hindmost 

 row are forked ; what other lateral elements were present in this row is not known. 

 This posterior row (p.r.) in the specimen figured seems to have actually underlain 

 the anterior end of the pubis (pu.), but this may be the consequence of displacement 



Text-fig. 87. 



Adult shoulder-girdle of Cryptodddus oxoniemis, from above. (E. 2616, about 5 nat. size.) 

 c7., clavicle ; cor., coracoid ; gl., glenoid cavity ; sc, scapula. 



resulting from the flattening out of the carcass. The whole ventral surface of the 

 body seems to have been very strongly protected, by the expanded scapulae and coracoids 

 in front, the plastron of ventral ribs in the middle, and the plate-like pubes and ischia 

 behind. 



Shoulder-girdle (PL X. figs. 1, 2 ; text-figs. 87-89). — This has been described in 

 some detail in the Annals and Magazine of Natural History, [6] vol. xv. (1895) p. 333, 

 and the following account is largely founded on the one there given. 



