61 



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. UNicoLOB, Oray.' 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. BicoLOB, Theobald. 



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

 belly white. 

 Rangoon. 



CANTORIA, Girard. 



Head shielded ; anterior frontal single, in contact with 

 rostral. Eye very small. Orbital circle complete. Five 

 labials. Scales 19, smooth. 



C. ELONGATA, Gthr. 



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

 of white dots ; whitish below. 

 Straits. 



C. DATANA, Stolicska. 



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

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

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

 yellow anterior fillet ; yellow below. 

 Amherst. 



CERBERUS, Guvier. 

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

 large, contiguous ; orbital ci/rcle complete ; posterior labials 

 divided transversely. Cleft of the mouth turned up behind. 

 Scales strongly keeled, 21-25. 



