TESTTJDO. 13 



Plastron connected with the carapace by a ligamentous [p-'J8. 



hinge ; a bony temporal arch Cyclemys, 



Plastron united to the carapace by suture, immovable ; 



a bony temporal arch Bellia, p. 22. 



B. Alveolar surface of jaws very broad ; choanae 



behind the level of the eyes Damonia, p. 23. 



III. Digits distinct, entirely webbed ; alveolar sur- 

 face of upper jaw with one or two median 

 ridges. 



A. Choanae between the eyes ; alveolar surface 



of upper jaw with a single median ridge ; 

 fore limb with five claws. 

 Edge of jaws not denticulated ; skin of hinder part of 



head divided into small shields Orlitia, p. 24. 



Edge of jaws denticulated; skiu of upper surface of [p. 25. 



head not divided into shields Callagub, 



B. Choanae behind the level of the eyes ; alveolar 



surface of upper jaw with two ridges ; fore 



limb with four claws only BATAGUR,'p. 26, 



Genus TESTUDO. 



Linn. Syst. Nat. i, p. 350 (17GGj. 



Neural plates usually alternately tetragonal and octagoiial; 

 costal plates alternately narrower and wider. Plastron extensively 

 united to the carapace by suture, with short axillary and inguinal 



Fig. 5. — Skulls of Testucio latinuchalis (A) and T. emys'{'B). 

 (From Fascic. Malay., Zool.) 



buttresses, which do not reach, or just reach, the costal plates ; 

 entoplasti'on anterior to the humero-pectoral suture. Skull with 



