( xxxviii ) 



Scales in 27 — 31 rows. Supranasals separ- 

 ated by a small shield. Green dark 

 spotted ••• T. Cantori. 



b. — The shield in front of labial pit, distinct from the 

 second labial. 

 Scales in 25 rows. Supranasals separated 



by a shield. Brown . . . T. Andersoni. 



Scales in 21 rows. Supranasals separated. 

 Brown with the greenisli white side, 

 stripes enclosing a brown band ... T. mutabilis. 



Scales in 21 rows. Brown, dark spotted . . . T. strigatus. 



c. — Imperfectly known species. 



Brownish gray with black, white edged 



rings ... T. mucrosquamatua. 



Peltopelor. 



Crown of head covered with very large scales. 

 Green with yellow .side streak ... P. macrolepis. 



Halys. 



Head entirety shielded. Scales in 23 — 27 rows. 

 Dark brown indistinctly barred ... H. Himalayanus. 



Olive green ... H. EUiotti. 



Hypnale. 

 Head shielded. Scales in 17 rows. 

 Brown, barred and marbled ... H. nepa. 



