4 Catalogue of Reptiles inhabiting the 



Zool. from its size, and the strongly toothed flat front and hind margins 

 of the shell, also appears to be a young animal. The penultimate, the 

 fourth, vertebral shield is represented as divided in two pieces, which 

 if so in the original, must be accidental, as normally the fourth vertebral 

 shield is six-sided, and in size nearly equalling the preceding. The nuclei 

 of the costal shields are more central than represented in the plate. 



In the living adult animal the head, neck, shell, tail and feet are of a 

 dirty yellowish, or greenish brown, which becomes paler on the sternum. 

 The nuclei of the vertebral shields are slightly raised. The costal shields 

 are depressed, their sides sloping towards the nuclei, thus forming as it 

 were very shallow hexagonal basins. The front and hind margins are 

 broadly revolute, their toothed appearance worn off. The sternum is 

 slightly concave in the centre. The largest individual was of the fol- 

 lowing dimensions : 



Length of the head, 1 . feet 3 inch. 



Ditto ditto neck, 3 



Ditto ditto shell, 1 7£ 



Ditto ditto tail, 2f 



It lived in my garden at Pinang upwards of a twelvemonth, appa- 

 rently without food, aud it was never observed to enter a tank. The 

 shell bears deep white marks of corrosion, in appearance like that 

 observed in Testacea inhabiting stagnant water. The animal suffered 

 itself to be touched with impunity, never offering to scratch or bite. 

 This tortoise inhabits the valleys, but is apparently not numerous. 

 Emys trivittata, Dumeril and Bibron. 

 Shell smooth, entire, subcordiform, arched, yellowish green, and with 

 three broad longitudinal black bands ; jaws toothed. 



Habit. — Malayan Peninsula, Pinang. 

 Bengal. 

 It inhabits rivers and ponds on the Malayan Peninsula, but appears 

 not to be numerous. In the Malayan adult animal there is a large 

 black spot situated at the anterior, lower angle of the marginal shields, 

 there is no trace of a keel in the centre of the vertebral shields, and 

 the very minute nuchal shield is triangular, with the apex towards the 

 vertebral shields. The shield is rather oval than subcordiform. The 

 sternum is slightly arched, of a pale whitish yellow. The largest 

 individual was of the following dimensions : 



