162 NOTES FROM THE AUSTRALIAN MUSEUM. 



EXPLANATION OF PLATES. 



Plate III. 



Plastron showing the two small plates, which may have been part of the 

 marginals and not separate plates as shown in the figure, cut 

 away ; the points of ossification shown in each plate. 



Plate IV. 



Fig. 1. — Anterior portion of carapace showing medial and 1st and 2nd 

 vertebral plates. 



Fig. 2. — Last pair of costals, pygal, and the partly ridged marginal plate 

 and tail, from above. 



Plate V. 

 Fig. 1.— Profile of head. 



Fig. 2. — Head from above showing the plates. 



Plate VI. 

 Fig. 1. — Fore leg slightly distorted in drying. 

 Fig 2.-Hind leg. 



