234 



CHELTDID^. 



8. ELSEYA. 



Elseya, part., Gray, Ann. Sf Mmj. N. II. (4) xx. p. 43 (18G7), and 

 Suppl. Cat. Sh. 'licpt. i. p. 70 (1870), «?u/ App. p. 22 (1872). 



Neural plates absent ; nuchal shield absent. Plastron large, 

 with ver}^ strong axillary and short inguinal buttresses, the latter 

 just reaching the fifth costal plate. A supraoccipital arch ; parietal 



Fig. G4. 



Skull of Elseya dentata. 



bones much expanded, forming a roof; jaws very strong; a median 

 ridge along the alveolar surface of the upper jaw. Chin with a 

 pair of dermal appendages. Digits entirely webbed. 

 Australia. 



