M?'. Bell on two new Genera of Land Tortoises. 397 



and short; the caudal scuta truncate, in contact with the 

 upper shell, excepting a slight emargination for the passage 

 of the tail ; the spaces for the hinder legs very small and 

 contracted. 



As I have only seen the shell of this species, I am unfortu- 

 nately obliged to confine the description to that part. 



I have in my collection two specimens of this Tortoise, which 

 difl^er considerably from each other both in colour and form. 

 In one, the ground-colour of the upper shell is deep black, the 

 radiations of a bright clear yellow, and the sternum of a light 

 yellow : the areae of the dorsal scuta are quite flat, and the 

 hinder part of the back somewhat depressed. In the other, the 

 ground-colour is of a deep blackish-brown, the radiations very 

 obscure, and the sternum of a brownish-yellow colour, the ante- 

 rior lobe being the darkest part : the dorsal scuta are elevated 

 in the centre, and the back is everywhere evenly rounded, form- 

 ing nearly a semicircular outline. Notwithstanding these points 

 of dissimilarity however, which give at first sight a strikingly 

 different appearance to the two specimens, the essential charac- 

 ters both of marking and of structure are sufficiently preserved 

 to identify them as individuals of the same species. 



Dimensions. Inches. Lin. 



Length of the upper shell, following the curvature 7 



Length in a direct line 5 



Breadth, following the curvature 6 3 



Circumference 10 



Lateral diameter 3 6 



Vertical diameter 2 5 



Length of the sternum 4 6 



Length of the moveable lobe 12 



Breadth of ditto at its articulation 2 



Genus. 



