1847-] Malayan Peninsula and Islands. 613 



dentated behind. Thegular pair of shields is very, short, broadly sub- 

 triangular with the posterior margin concave, curved backwards. The 

 second, and fifth pairs are of nearly equal size, subquadrangular, their 

 external margins forming a sharp ridge. The central part of the third 

 and fourth pairs is subrectangular, broader than long, their margins 

 forming a sharp ridge where they join the sterno-costal processes. 

 The latter are of nearly equal size, longer than broad, their united 

 length being less than one half of the central part of the sternum. The 

 sixth pair is subrhomboidal, longer than broad. The axillary and in- 

 guinal pairs are large ; the former subrhomboidal or lozeng-shaped, 

 the latter subtriangular. The head is conic ; the muzzle short pointed ; 

 the vertex irregularly wrinkled. On the temples, cheeks, and round 

 the orbits, and the lower jaw appear some large polygonal scales. The 

 occiput, angle of the mouth, and the rounded tympanum are covered 

 with similar minute scales. The eyes are large, prominent ; the iris 

 silvery grey ; the pupil round black. The nostrils are minute, round, 

 horizontally pierced, close together at the apex of the muzzle. The 

 jaws are minutely toothed ; the upper has at the symphysis two larger 

 teeth, between which fits a similar single one in the lower jaw, thus 

 hermetically closing the mouth. The neck, the throat and the other 

 soft parts are studded with minute tubercles, except the fore-arm, the 

 posterior tarsal margin, and the back of the fingers and toes, which are 

 covered with broad, but very short, polygonal scales. On the ulnar 

 margin of the fore-arm are four to five large rounded flexible scales. 

 The interdigital web is large and lax. The nails are strong, of nearly 

 equal size, sharp, and arched. The conical tail reaches but little beyond 

 the shell, with a longitudinal furrow behind the vent. The head, neck, 

 throat and the limbs are of the same greyish green olive as the shell. 

 The interdigital membrane is blackish, except the web connecting the 

 fourth and fifth (nailless) toe, which is of a bright greenish yellow 

 colour. Of three individuals observed, differing but little in size, the 

 largest was of the following dimensions : 



Length of the head, Of inch. 



Ditto ditto neck, Of 



Ditto ditto shell, . . . : . 2£ 



Ditto ditto tail, Of 



Greatest transverse diameter of the shell, 2| 



