2 9 2 



i. Orlitia borneensis Gray. 



Orlitla borneensis, Gray, Ann. Nat. Hist. (4) XI 1873, p. 173. 

 Bellia borneensis, Boulenger, Cat. Chel. 1889, p. loo. 

 Hardella baileyi, Bartlett, Sarawak Gazette May I 1895. p. 83. 

 Brookeia baileyi, idem, June i 1896, p. 113. 



Adelochelys crassa, Baur, Anat. Anz. XII 1896, p. 314, fig. I 4. 

 Liemys inornata, Boulenger, Ann. Nat. Hist. (6) XIX 1897, p. 469. 

 Orlitia borneensis, Schenkel, Verb. Naturf. Ges. Basel XIII 1901, p. 194. 

 Orlitia borneensis, Siebenrock, Zool. Jahrb. Suppl. X 1909, p. 458. 



Carapace very convex, tectiform, with an obtuse median 

 keel, posterior margin serrated in young specimens; carapace 

 a little depressed, smooth and rounded in adult specimens. 



Fig. 106. Orlitia borneensis Gray. Young specimen X 5 /v 



Nuchal shield more broad than long, narrow anteriorly; ver- 

 tebrals more broad than long, narrower than the costals; fifth 

 vertebral much narrower than others; fourth costal much 

 smaller than third; posterior marginals smaller than the others ; 

 dorsal shields a little rugose. Plastron smaller than the opening 

 of the shell, truncate anteriorly, deeply notched posteriorly, 

 angulated laterally in the young; width of bridge exceeds the 

 length of the hind lobe; suture between the anal shields short- 

 est, that between humerals and gulars about equal, length 



