( 120 ) 



with a dark central spot. The scales next th^ vertebral rows 

 unspotted. 



Grows to 19 inches. 



Inhabits Ceylon, where it is rare. 



R. planiceps, Peters. Peters Uropelt, p. 15. 



M. pMlipinnus, Guv, 



Snout acutely pointed. Rostral much less than half the 

 length of the head, and barely compressed above. Caudal ob- 

 tusely convex, larger than the head and extending to the lower 

 surface of the tail. Ventrals 156-174! not much larger than 

 adjoining scales. Males with 6 entire sub-caudals, females with 

 4 bifid ones. Colour blackish olive, scales pale margined. Prse- 

 anal scales white, with white blotches sometimes on the fore 

 part of the body. 



Grows to 16 inches. 



Inhabits Ceylon, and not the Philippines, as erroneously sup- 

 posed by Cuvier and the French Zoologists. 



Giinther considers "planim^s Q,nd Philipiyinus identical, so that 

 the latter name had better be suppressed. 



R. Trevelyanus, Kelaart. Prod. II, p. 17. 



Mitylia Gerrardi, Gray. P. Z. S., 1858, 



RJiinophia homolepis, Hem. Pet. Urop., p. 14, tab. 2, f. 2. 



Snout acutely pointed. Rostral much less than half the length 

 of the head ; indistinctly keeled above. Caudal obtusely convex 

 reaching to the lower surface of the tail, and rather larger than 

 the head. Ventrals 193-202 not much larger than the adjoining 

 scales. Sub-caudals 4 or 5, some simple, some bifid. Colour 

 above black, below white, each scale with a black central spot. A 

 row of triangular white spots along e£ich side. Tip of tail whitish. 



Grows to 11 inches. 



Inhabits the Kandyan district of Ceylon. 



