64. 



HIPISTES, Gray. 



Head short; neck slender; tail stout, tapering. Head 

 shielded ; anterior frontal single, in contact with the rostral ; 

 nasals semi-divided. Scales smooth, 39 ; ventrals narrow, 

 zuith sliavp lateral keel. 



H. HYDRiNUS, Cantor. 



Ventrals 153-161, subc. 34. Occipitals multiple. Greenish 

 yellow, with about 48 black cross-bars. 

 Straits. Semi-pelagic. 



GERARDA, Gray. 



G. BicoLOR, Gray. 



A snake caught at Rangoon is believed by Mr. Theobald 

 to belong to this reputed West Indian genus. 



My own specimen I at first thought to be a new Cala- 

 maria, though of amphibious appearance, as it was found in 

 a dusty street of Rangoon. Plate X, fig. 4. 



Ventrals 156, subc. 18. Scales 17. Anterior frontal 

 sinsle, elono-ate, convex-ended, concave-sided. Nostrils 

 superior, in a single shield slightly split. Shining lead 

 colour above, white below. 



HERPETON, Lacepede. 



Snout ends in tvjo flexible cylindrical tentacles. Head 

 shielded; two small anterior frontals ; nasals single, conti- 

 guous. Orbital ring complete. Scales 37, keeled. Ventrals 

 narrow with lateral keel. 



H. TENTACULATUM, LacSpkle. 



Ventrals 133-136. Brown with 3 dorsal stripes ; the 

 uppermost connected with its fellow by cross-bars ; belly 

 yellowish with dark lateral stripes. 

 Siam. 



