CTCLEMYS. 19 



Cyclemys -platiimta, Bouleng. Cat. Chelon. p. 130 (1889) ; id. Faun. 

 Brit. Ind., Kept. p. .30 (1890) ; 3. Flower, P. Z. S. 1899, p. 61i> ; 

 Ridley, Jouru. Straits Branch Roy. Asiat. Soc. No. 3i>, p. 186 

 (1899) ; Bouleng. Fascic. Malay., Zool. i, p. 112 (1903). 



Carapace depressed, angular, the vertebral region flat, with an 

 interrupted obtuse keel ; posterior margin serrated ; six, rarely 

 seven, vertebral shields ; vertebrals (except the first) much broader 

 than long, at least as broad as costals. Plastron narrower than 

 the opening of the shell, with the hind lobe openly emarginate. 

 connected with the carapace by a distinct bridge, the width of 

 which is contained 2| to 2| times in the length of the plastron ; 

 no distinct transverse hinge ; a large inguinal shield ; the suture 

 between the pectoral shield and the marginals longer than that 

 between the abdominal and the marginals ; the suture between the 

 pectoral shields as long as or a little shorter than that between 

 the abdominals. Upper jaw hooked, the hook bicuspid, divided 

 by a median groove. Digits extensively webbed ; claws long, 

 curved, sharp. Front part of arm with bi'oad band-like shields. 

 Carapace reddish brown, or yellowish brown with radiating brown 

 lines ; young with a pair of round black spots on each vertebral 

 shield, and one or two similar spots on each costal ; plastron 

 yellow, with brown spots, or brown with the sutures between the 

 shields yellow. Head yellowish brown ; neck brown, with irre- 

 gular yellowish streaks, the broadest of which extends from the 

 posterior corner of the eye. 



Length of shell 330 millim. 



Mergui, Malay Peninsula, Sumatra, Borneo. Observed in 

 Penang, Singapore, Perak, Selangor, J chore, and Jalor. 



In captivity, according to Capt. Flower, it spends all its time 

 by preference in shallow water, and feeds on almost any vegetable, 

 preferring fruit. It is regarded as the most active and intelligent 

 of the Malay tortoises. Two of them have been observed to 

 attack a big water-snake (Acrochordus javanwus). 



Capt. Flower (Z. c. p. 613) mentions a variety, differing in the 

 number (5) of vertebral shields, in the general shape of the 

 caraj^ace, and in the colour of the head. This supposed variety 

 is a distinct species, 0. dhor. 



15. Cyclemys annandalii. 



Bouleng. Fascic. Malay., Zool. i, p. 142, pis. vii & viii (1903). 



Carapace depressed, unicarinate, the keel merely indicated on 

 the fourth and fifth vertebral shields in the adult ; posterior 

 margin strongly serrated in the young, feebly in the adult ; five, 

 rarely six, vertebral shields, which are riot broader than long and 

 much narrower than the costals in the adult. Plastron narrower 

 than the opening of the shell, with the hind lobe openly emar- 

 ginate, connected with the carapace by a distinct bridge, the 

 width of which is contained 2k times in the length of the plastron; 



c2 



