424 TirEfiiD^E, 



523; Ancistrodon Mmalayanus. 



lialys Iiinialayanus, Giinth. Mepf. B. I. p. o'-*-'], pi. xxiv, tig. A ; 



Stoliczlm, J. A. 8. B. xxxix, 1870, p. 226; Anders. P. Z. S. 1871, 



p. 196, and 1872, p. 401 ; Fayrer, Thanatoph. pi. xvi ; Tbcob. Cat. 



p. 225 ; Blanf. Zool. 2nd Yark. Miss., Bept. p. 24. 

 Trigonocepbalus blomholHi (non Boie), Jan, Icon. Ophid. 46, pi. v, 



figs. 4, 5. 



Snout hardly turned u|), with sharp canthus rostralis ; rostral 

 as deep as broad or a little broader than deep ; a pair of praifrontals, 

 and a pair of internasals in contact with each other; two post- 

 oculars, upper small, louer descending to below the eye, which it 

 sometimes entirely separates from the labials ; 5 to 7 upper labials, 

 none entering the loreal pit, the penultimate very large, formed by 

 fusion with the lower tem]iorals. Scales sharply keeled, in 21 or 

 2'3 rows. Yentrals 144-160 ; anal entire ; subcaudals 35-51 pairs. 

 Brow n, with black sjjots or transverse bands ; sometimes with a 

 light vertebi'al band with dark festooned borders ; a black, light- 

 edged band from the eye to the angle of the mouth ; lower parts 

 dark brown or variegated with black and white. 



Total length 34 inches. 



Hah. \evj common all over the North-western Himalayas, 



' especially between 5000 and 8000 feet, and ascending e\eii to 10,000 



feet ; also recorded from Sikhim, and specimens in tlie British 



Museum are stated to have been collected by Jerdon in the Khasi 



Hills. 



524. Ancistrodon hypnale. 



Bussell, Ind. Scrp. ii, pi. xxii. 



? Coluber nepa, Lanr. Si/st. Bept. p. 97. 



Co]ilnas hypnale, Merr. Tent. p. 1-55. 



Trigonocepliahisliypnale, Schlet/. Bliys. Serp. ii, ]i. -5.00, pi. xx, figs. 6 i<c 



7; Dvm. ^ Bibr. Brp. Gen. vii, p. 1498; Jan, Icvn. Ojdiid. 46, 



pi. V, figs. 2, 3. 

 Triniesurus ceylonensis, Gray, Zool. Misc. p. 49, 

 Trigonocephalus zara, Gray, Cat. Sn. ]i. 15. 

 Hypnale nepa, Cope, Broc. Ac. Thilud. 1859, p. 335; Giinth. Bept. 



B. I. p. 394 ; Fayrer, Thanatoph. ])1. xvii ; Theoh. Cat. p. 226. 

 Hypnale atfinis, ^Jif/er*. J. A. S. B. xl, 1871, jit. 2, p. 20. 



Snout more or less tui'ned u]) at the end, with sharj) cant bus 

 rostralis ; rostral as deep as broad or deeper than broad ; uj)per 

 sin-face of snout covered with small shields, -which are often irregu- 

 lar and scale-like ; one or two postoculars and one or two suboculai-s ; 

 7 or 8 upper labials, second entering the loreal pit, none entering 

 the eye. Scales n)ore or less distinctly keeled, in 17 or 19 rows. 

 Veutrals 140-155 ; anal entire ; subcaudals 31-45 pairs. Colora- 

 tion very variable : upper ]mrts lirow n, yellowish, or greyish, 

 uniform, or with blackish-brown alternating spots or cross bands, 

 frequently m ith small dee]) black s])ots disposed in pairs ; sides of 

 head usually dark brown, edged abo^e with a fine m hitish line ; 



