CYCLEMYS. 21 



serrated ; vertebral shields as broad as long or broader than long, 

 narrower than the costals. Plastron narrower than the opening 

 of the shell, with the hind lobe angularly notched, connected with 

 the carapace by a distinct bridge, the width of which is contained 

 2^ to 3 times in the length of the plastron : a transverse hinge 

 between the hjo- and hypoplastral bones (which does not corre- 

 spond with the curved suture between the pectoral and abdominal 

 shields), developed in the adult only ; a small inguinal shield may 

 be present ; suture between the pectoral shield and the inarginals 

 shorter than that bet\^'een the abdominal and the marginals ; the 

 longest median suture is between the pectorals. Hook of upper 

 jaw bicuspid. Digits distinctly webbed, with sharp claws. Front 

 part of arm with broad transverse scales. Carapace brown, or 

 yellowish brown spotted with dark brown ; plastron yellowish 

 or pale brown in the young, with dark brown spots or radiating 

 lines, dark brown in the adult. Neck with dark and light 

 longitudinal lines. 



Length of shell 190 millim. 



Northern India, Burma, Siara, Camboja, Malay Peninsula and 

 xlrchipelago. A specimen was obtained at Kampong Jalor by 

 Messrs. Annandale and Robinson. Specimens are in the ISelangor 

 Museum from the vicinity of Kuala Lumpur. 



I have examined a young specimen from Ulu Legeh, Siamese 

 Malay States, kindly submitted to me by Dr. Hanitscli, who had 

 referred it to Kachiuja lineata (Eep. Baffles Mus. 1897, p. S). 



17. Cyclemys amboinensis. 



Testiido amboinensis, Daud. Hist. Eept. ii, p. 309 (1802). 



Cistudo amboinensis. Cantor, Journ. ^\siat. Soc. Bengal, xvi, p. Gil 

 (1847). 



Cuora nmboinensis, Gray, Cat. Sh. Rept. i, p. 41 (1855) ; Giinth. 

 Kept. Brit. Ind. p. 12, pi. iv, figs. A, B (1864). 



Cyclemys amboinensis, Bouleng. Cat. Chelon. p. 133 (1889) ; id. 

 Faun. Brit. Ind., Kept. p. 3l (1890) ; S. Flower, P. Z. S. 1899, 

 p. 614 ; Eidlev, Journ. Straits Branch E,oy. Asiat. Soc. No. 32, 

 p. 186 (1899) ] Bouleng. Fascic. Malay., Zool. i, p. 142 (1903). 



Carapace depressed and tricarinate in the young, usually very 

 convex and without or ^ith a single keel in adult feniales; vertebral 

 shields as long as broad or a little longer than broad in the adult, 

 broader in the young, much narrower than the costals. Plastron 

 as large as the opeiiing of the shell in the adult, without dis- 

 tinct bridge ; no anal notch ; the line of junction between the 

 hyoplastron and the carapace shorter than that between the 

 hypoplastron and the carapace ; pectoral shields as long as 

 the abdominals or shorter, as long as the humerals or slightly 

 longer ; axillary and inguinal shields small or absent. Head rather 

 small ; upper jaw scarcely hooked, without any emargination. 

 Front part of arm with large transverse scales. Digits moderately 

 webbed, with sharp claws. Carapace brown or blackish ; plastron 



