1354.] Notices and Descriptions of various Reptiles. 297 



Lower parts yellowish- white, with specks and powdering of dusky ; 

 more prevalent towards and upon the tail. Seventeen ranges of 

 scales : scuta* 164-6 ; scutellae 130-46 pairs. Length of largest speci- 

 men 31 in., of which tail Q\ in. 



Two specimens closely resemble, but a third presents some dif- 

 ferences of colour. The row of yellow spots is wanting along the 

 spine, also the dark band on the nape, and the pale V-like occipital 

 mark : the under-parts also are more uniformly whitish. Scutse 168 ; 

 scutellae 124 pairs only. All are from near Darjiling. Capt. W. S 

 Sherwill. 



Tr. dipsas, nobis, n. s. Form as in Dipsas, slender, the neck 

 much compressed. Head oval, flattened above ; eyes large ; the 

 muzzle anterior to the orbits short : nostrils small, opening quite 

 laterally ; the nasal and rostral shields being vertical. General 

 colour plumbeous above, obscurely spotted with black, and two barely 

 traceable lines of whitish spots, more distinct towards and upon the 

 neck where they increase in size towards the head. Oeciput black, 

 with an elongated white medial spot, and white V-like mark behind 

 it, the apex of which is prolonged a little backward. A narrow black 

 line from eye to eye passing in front towards the muzzle ; and 

 broader black streak posterior to the eye, continued as a series of 

 longish oval spots on the sides of the neck bordering the scuta?. 

 Some black marks also on the upper labials. Under-parts white 

 throughout, with a row of minute black specks on either side. Rows 

 of scales 17: seutae 169; scutellae 90 pairs. Specimen (young) 21^ 

 in. long, of which tail 4£ in. Vicinity of Darjiling. Capt. W. S. 

 Sherwill. 



Tr. plattceps, nobis, n. s. A beautiful species, with small and 

 flat (but not broad) head, having much the aspect of a Herpeto- 

 drtas.* Young specimens generally shew the two white dots on 

 the occipital shields, seen also in Tr. umbratus. Frontal and na- 

 sal shields vertical. Head and upper-parts deep green with slight- 

 ly black-edged scales ; the lower-parts bright yellow, with a coral- 

 red stripe bordering the abdominal scutae on each side, and strongly 



* Perhaps H. fr^enatus, Gray, (Ann. M. N. H,, Dec. 1853, p. 390,) may 

 prove to be a variety. 



2 R 



