24. TBACHISCHIUM. 299 



a-b. S (V. 132 ; C. 38) Darieeling. W. T. Blanford,"! 



& 2 (V. 145 ; C. 85). Esq. [P.]. | 



c. Yg. (V. 135 ; 0. 34). Darieeling. Col. Beddome [O.j. HTypes.) 



d. <S (V. 139 ; C. 33). Sikkim. Messrs. v. Sohlag- I 



intweit [0.]. J 



3. TracMscMum tenuiceps. 



Oalamaria tenuiceps, Bli/th, Journ. As. Soc. Beng. xxiii. 1854, p. 288. 

 Ablabes tenuiceps, Oiinth. Itept. Brit. Tnd. p. 224 (1864) ; Theoh. 



Cat. Bept. Brit. Ind. p. 154 (1876). 

 Trachiscliium tenuiceps, Bmihng. Faun. Ind., Bept. p. 286 (1890). 



Eostral a little broader than deep, visible from above ; suture 

 between the internasals about two thirds the length of that between 

 the prsefrontals ; frontal longer than its distance from the end of 

 the snout, a little shorter than the paiietals ; loreal longer than 

 deep ; one preeocular ; two postooulars ; temporals 1 + 1 or 1 + 2 ; 

 six npper labials, third and fourth entering the eye, first smallest, 

 sixth largest ; four lower labials in contact with the anterior chin- 

 shields, which are a little longer than the posterior. Scales in 13 

 rows ; male with keeled scales in the anal and basicaudal regions. 

 Ventrals 134-138 ; anal divided ; suboaudals 34-39. Blackish 

 above, yellowish inferiorly. 



Total length 350 millim. ; tail 50. 



Eastern Himalayas. 



a. d (V. 133 ; C. 39). Nepal. B. H. Hodgson, Esq. [P.]. 



h-c. S (V. 135 ; 0. 37) Darjeelipg. T. C. Jerdon, Esq. [P.]. 



& $ (V. 134 ; 0. 34). 



4. TracMscMum monticola. 



Oalamaria monticola. Cantor, Proc. Zool. Soc. 1839, p. 50. 

 Oyclophis monticola, G'dnth. Bept. Brit. Ind. p. 232 C1864) ; Theob. 



Cat. Bept. Brit. Ind. p. 158 (1876). 

 Ablabes albiventer, G'dnth. Proc. Zool. Soo. 1875, p. 231. 

 Trachischium monticola, Bouleng. Faun. Ind,, Bept. p. 286 (1890). 



Eostral deeper than broad, visible from above ; suture between 

 the internasals about half as long as that between the prsefrontals ; 

 frontal longer than its distance from the end of the snout, shorter 

 than the parietals ; loreal longer than deep ; one praeoeular ; two 

 postooulars, rarely one ; temporals 1 + 1 ; six upper labials, third 

 and fourth entering the eye, first smallest, sixth largest ; four lower 

 labials in contact with the anterior chin-shields, which are a little 

 longer than the posterior. Scales in 15 rows. Ventrals 113-136 ; 

 anal divided; subcaudals 28-44. Dark brown above, with two 

 more or less distinct pale brown longitudinal bands edged on each 

 side with a black line ; yellowish inferiorly ; young with an inter- 

 rupted yellow coUar. 



Total length 230 millim. ; tail 30. 



Darjeeling, Naga Hills, Assam. 



