16 TESTUDINID.B. 



third, and fourth with the autero-hiteral side not half as long as 

 the postero-lateral. Plastron large, gular region moi'e or less 

 produced and notched, hind lobe deeply notched ; pectoral shields 

 meeting on the median line ; axillary sbield very small, inguinal 

 large. Head rather small ; temporal arch narrow, slender ; two 

 large prsefrontal shields and a large frontal ; jaws not hooked, the 

 alveolar surface of the upper jaw with a feeble median ridge. 

 Limbs w'ith very large, bony, imbricate tubercles, which, on the 

 front of the fore limb and on the heel, are pointed and spine-like; 

 a group of bony tubercles on the back of the thigh, the central 

 ones very large and conical. Tail of male ending in a divided, 

 claw-like tubercle. Yellow'ish or pale brown, dark brown or 

 blackish on the periphery of the dorsal shield and on the anterior 

 border of the marginals ; young with the carapace speckled with 

 blackish ; plastron yellow or brown and yellow ; head and limbs 

 yellow, more or less variegated with dark brown. 



Length of shell 255 millim. 



Cochinchina, Burma, Malay Peninsula (Perak, Selangor, and 

 Pahaug). 



Apparently found* at higher elevations than T. emys. 



This species was first described from a shell referred to 

 Geoemyda *, The types of T. pseudemys are from the Batang 

 Padang district, S. Perak, 1000-2000 feet. I have also examined 

 a specimen from the Larut Hills, 4000 feet. Dr. Annandale 

 observes of the Batang Padang specimens : — " Taken on a jungle 

 patch at dusk, within a few yards of one another. When alarmed 

 they draw in their head, but when lifted from the ground they 

 become very vicious, hissing, stretching -out their necks, and 

 attempting vigorously to bite, their wdjole demeanour differing 

 from that of specimens of T. emys I have seen in captivity in the 

 Malay Peninsula." 



Genus GEOEMYDA. 

 Gray, P. Z. S. 1834, p. 100. 



Neural plates mostly hexagonal, postero-lateral margins shorter 

 than antero-lateral. Plastron united to the carapace by suture, 

 with axillary and inguinal peduncles just reaching first and fifth 

 costal plates ; hnmero-pectoral suture extending across ento- 

 plastron. Skull without bony temporal arch ; alveolar surfacer 

 narrow, without median ridge. Upper surface of head covered 

 with undivided skin. Digits with a short web. Tail very short. 



Buinna, Malay Peninsula and Archipelago. 



Habits terrestrial or seraiaquatic ; cliiefly herbivorous. 



* I am indebted to Dr. Pellegrin for further notes ou this specimeu, wliich 

 conGrm the identification made by Dr. Siebenrocli. 



