234 CHELYDID®. 
8. ELSEYA. 
Elseya, part., Gray, Ann. § Mag. N. H. (4) xx. p. 43 (1867), and 
Suppl. Cat. Sh. Rept. i. p. 76 (1870), and App. p. 22 (1872). 
Neural plates absent; nuchal shield absent. Plastron large, 
with very strong axillary and short inguinal buttresses, the latter 
Just reaching the fifth costal plate. A supraoccipital arch ; parietal 
Fig. 64. 
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. 
