G2 



C. RHYNCHOPS, Schneider, Plate X, fig. 1. 



Scales 23-25. Ventrals 132-148, subc. 54-62. Vertical 

 broken up ; labials 9-10. Dark ash, with darker cross- 

 bands posteriorly ; under-parts whitish with marbled ash 

 cross-bands. 



Common in East Indian estuaries. It often goes some 

 distance from the water; I have a specimen which was 

 brought half-alive to me, having been just caught in a com- 

 pound nearly two miles from the Kangoon river. 



HYPSIRHINA, Wagler. 



Head shielded ; a single anterior frontal, nasals half- 

 divided, large, contiguous. Seven or eight labials. Scales 

 smooth, 19-23. 



H. PLUMBEA, Boie. 



Short and thick. Scales 19. Ventrals 120-131, subc. 

 29-44. Greyish olive, often with vertebral row of black 

 spots ; outer scales and belly yellowish, with black median 

 subcaudal line. 



Straits, China. 



H. ENHYDRis, Schneid&r\ Plate X, fig. 3. 



Of very variable form, the male said to be slender, the 

 female stout with ogival snout. My specimen has a sharp 

 triangular head, slender and very elongate neck ; posterior 

 part very stout, tail very thin. Scales 21. Ventrals 159-166, 

 subc. 54-69. Colour variable, that of my specimen is as 

 follows : — Plumbeous, with posterior dorsal light line ; lower 

 parts and outer scales whitish, with salmon-coloured stripe 

 along the second row of scales, dark stripe along median 

 and lateral line of ventrals. 



Rivers and irrigated fields in Burma and Siam. 



H. JAGORii, Peters. 



Scales 21. Ventrals 128, subc. 66. Brownish grey above, 



