Gl 



FORDONIA, Gray. 



Head shielded, nostril superior in a single nasal. Ante- 

 rior frontal single, small, in contact with rostral. Five 

 labials. Scales smooth, 25-29. 



F. UNicoLOP, Gray. Plate X, fig. 2. 



Scales 25-27. Ventrals 140-156, subc. 26-37. Labials 5 

 (3). No loreal (in my specimen). Brown ; belly and outer 

 scales whitish. 



Straits, Burma. 



F. BicoLOR, Theobald. 



Labials 5 (5). Yellowish grey, dark spotted ; sides and 

 belly white. 



* Ransroon. 



CANTORIA, Girarcl 



Head shielded ; anterior frontal single, in contact with 

 rostral. Eye very small. Orbital circle complete. Five 

 labials. Scales 19, smooth. 



C. ELONGATA, Gthv. 



Ventrals 278, subc. 84. Reddish violet, with cross-bands 

 of white dots ; whitish below. 

 Straits. 



C. DAYANA, Stolieska. 



Ventrals 286, subc. 56. Anterior frontal almost linear. 

 Vertical large six-sided ; 2 postoculars the lowest also sub- 

 ocular; Dull yellow with broad blue-black cross-bands, 

 yellow anterior fillet ; yellow below. 

 Amherst. 



CERBERUS, Cuvier. 



Occiput scaly. Anterior frontals two, small ; nasals two^ 

 large, contiguous ; orbital circle complete ; posterior labials 

 divided transversely. Cleft of the mouth turned up behind. 

 Scales strongly keeled, 21-25. 



