302 



width is contained two times and three fourths to three times in 

 the length of the plastron; a transverse hinge between the 

 hyo- and hypoplastron in the adult, not corresponding with 

 the suture between the pectoral and abdominal shields; longest 

 median suture between the pectorals; suture between the 

 pectoral and marginals shorter than that between the abdo- 

 minal and marginals; axillary and inguinal shields small or 

 absent. Head covered with undivided skin; hook of upper 

 jaw bicuspid. Fore limb with broad transverse scales anteriorly; 

 digits webbed, with sharp claws, five on the fore limb, four 

 on the hind limb. Tail short. 



Carapace brown or yellowish-brown, spotted with dark brown 

 or with radiating dark lines on the shields; plastron dark 

 brown, in the young yellowish or pale brown with dark brown 

 spots or radiating lines; neck with dark and light longitudinal 

 lines. Length of shell 220 mm. 



Nom. indig. Kura Kura (Borneo). 



Habitat: Nias!; Mentawei Islands (Sipora); Sumatra! 

 (Bindjei and Sukaranda in Langkat, Indragiri, Bangko river 

 near Muara Labu, Fort de Kock, Padang!); Banka; Gr. Natuna 

 Island; Borneo! (Sebruang Valley, Kapuas river, Kuching in 

 Sarawak, Merabah); Java!. — Malay Peninsula; Tenasserim; 

 Burma; N. India; Siam; Cambodja; Annam. 



Semiaquatic. 



2. Cyclemys amboinensis (Daud.). 



Tesiudo amboinensis^ Daudin, Rept. II 1802, p. 309. 



Cyclemys amboinensis^ Boulenger, Cat. Chel. 1889, p. 133 (s. syn.). 



Cyclemys amboinensis, Siebenrock, Zool. Jahrb. Suppl. X 1909, p. 503. 



Carapace very convex, with or without a vertebral keel in 

 adult females, tricarinate and depressed in the young (fig. 113); 

 5 vertebrals as long as broad or a little more long, much narrower 

 than the costals; in the young broader. Plastron nearly as 

 large as the opening of the shell, truncate posteriorly, without 

 distinct bridge; pectoral shields as long as abdominals or shorter, 

 as long as humerals or a little longer; axillary and inguinal 

 shields small or absent. Head small, covered with undivided 

 skin; upper jaw not emarginated, scarcely hooked. Fore limb 

 with broad transverse scales anteriorly; digits webbed, with sharp 

 claws, five on the fore limbs, four on the hind limbs. Tail short. 



Carapace brown or black; plastron yellow with large black 



