70 EEPTILES. 



Lead-coloured ; back with obscure paleish lines ; lip, lower 

 series of scales on the sides of the body and beneath white ; scales 

 slightly keeled, marked with a pale central line, rather rounded at 

 the end ; head elongate ; eyes large ; occipital shields veiy large, 

 elongated behind; one large anterior and three small posterior 

 oculars ; the fourth and fifth upper labials moderate, equal, and 

 both under the eye ; nostril on slope of face, but is on a single 

 plate, with a groove on the outer side. 



a—c. In fluid. Madras. Presented by J. C. Jerdon, Esq. 



d. In fluid. Ceylon. Presented by R. Templeton, Esq. 



e. In spires. India. Presented by Dr. P. Eussell. 



" Coluber, n. s., ex India Orient. Dr. Russell," Shatv, MSS. 



' 23. Myron. 



Head rather elongate ; crown shielded ; occipital shields large : 

 nostrils sub-superior: frontals 3; anterior small, triangular, trans- 

 verse, over top of rostral : anterior labial shields rather narrow ; 

 hinder broad, large : scales slightly keeled, minutely striated : eyes 

 very small, over fourth labial : loreal small: two anterior and two 

 or three posterior oculars nearly surrounding the eye : superciliary 

 shields small. 



Very like Hypsirhina^ but scales keeled. 



1. The Australian Myeon. Myron Richardsonii. 



Back with alternate olive and many black cross-bands ; sides 

 white-spotted ; beneath white ; ventral shield dark-edged, with 

 dusky, central, longitudinal streaks. 



a. In spirits. Not good state. N.-West Australia. Presented by 

 Sir John Richardson, M.D. 



Uranops severe, Dum. ^ Bib. Erp. Gen. t. 68, no description. 

 The figures appear to represent a species allied to 31. Richardsonii. 

 The back is represented uniform blackish ; sides and beneath yel- 

 lowish ; the front part of the side with narrow oblique cross-bands ; 

 the belly and under-side of the tail with broader cross-bands ; the 

 loreal shields square, and there is an anterior and a posterior 

 ocular ; the occipital plates are rather large, and the temple 

 shielded. The country is not mentioned. 



2. The Three-streaked Myron. Myron trivittatus. 

 Olive, minutely black-dotted ; back with five very narrow con- 

 tinuous white lines, and between them five interrupted black 



