442 F. Stoliczka — On Indian and Burmese Ophidians. ("No. 4, 



but they are present* in the type specimen. The interstitial skin 

 is distinctly black on the head and neck, but less so on the rest of 

 the body, the neck is slender, as in the Sikkim specimen previous- 

 ly noticed. 



The latter has only eight permanently fixed teeth in each maxil- 

 lary, there are, however, seven others interposed between them, 

 hardly differing in size, but not fixed to the jaw ; 14 palatine and 

 about an equal number of mandibular teeth, the anterior 3 or 4 

 of these are considerably larger than the rest. 



Adult specimens of hexagonotus chiefly differ from the present 

 species by their shorter head, generally somewhat longer occipitals, 

 less high upper labials, and by their ferruginous coloration. 



DlPSAS TRIGONATA, (I. R., p. 312). 



I have examined some specimens of this common species from 

 South and East of Agra, and they had the white, dark edged, bands 

 quite isolated from each other in crossing the back, and not connected 

 by a zigzag line along the median line as is more usually the case. _ 



Fam. Lycodontidje. 

 Lycodon jara. 



Leptorhytaon jara, I. R., p. 321. 



Dr. Gunther made this species the type of his new genus Lep* 

 torhytaon. The principal differences given between the characteris- 

 tics of Lycodon and Leptorhytaon are, that in the former the body is 

 " slightly compressed," and the "nostrils between two shields," 

 while in the latter the body is said to be "not compressed," and 

 the nostril in " one nasal shield." 



I have examined several specimens of the present species ; some 

 taken alive near Calcutta, others from the base of the Sikkim Hima- 

 layas and from Pegu, and I find that in L. jara, the body is quite as 

 much, or rather quite as little compressed, as, for instance, in Lycodon 

 aulicus. One specimen has a distinct suture above the nostril, divid- 

 ing the shield into two parts, and below the nostril there is a groove 

 indicating a suture. Two other specimens have clearly two nasal 

 shields, as perfectly distinguishable as they are also in L. aulicus. 

 * Not absent, as I stated in J. A. S. B., vol. xxxix, p. 199. 



