28b COLUBHIDjE. 



with keeled scales in the anal and basicaudal regions. Ventrals 

 132-145 ; anal divided ; subcaudals 33-38. Dark brown above, 

 with indistinct lighter and darker longitudinal streaks ; yellowish 

 beneath, uniform or scantily mottled with brown. 



Total length 11 inches ; tail 1-4. 



Hob. Sikhim. 



338. Trachischium tenuiceps. 



Calamaria teuuiceps, Blyth, J. A. S. B. xxiii, 1854, p. 288. 

 Ablabes tenuiceps, Giinth. Kept. B. L p. 224 ; Theob. Cat. p. 154. 



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 parietals ; loreal longer than 

 deep ; one praeocular ; two postoculars; temporals 1 + 1 or 1 + 2; 

 6 upper labials, third aud fourth entering the eye, first smallest, 

 sixth largest ; 4 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 iu the anal and basicaudal regions. 

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

 above, yellowish beneath. 



Total length 14 inches ; tail 2. 



Hdb. Eastern Himalayas. 



339. Trachischium monticola. 



Calamaria monticola, Cantor, P. Z. S. 1839, p. 50. 



Cyclophis monticola, Giinth. Kept. B. I. p. 232 ; Theob. Cat. p. 158. 



Ablabes albi venter, Giinth. P. Z. S. 1875, p. 231. 



Eostral deeper than broad, visible from above : suture between 

 the internasals about half as long as that between the praef rentals ; 

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

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

 postoculars, rarely one; temporals 1 + 1; 6 upper labials, third 

 and fourth entering the eye, first smallest, sixth largest ; 4 lower 

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

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

 135 ; anal divided ; subcaudals 28-34 (44, Cantor). Dark brown 

 above, with two more or less distinct pale brown longitudinal 

 bands edged on each side with a black line: yellowish below; 

 young with an interrupted yellow collar. 



Total length 9 inches ; tail 1-2. 



Hob. Darjeeling, Naga Hills, Assam. 



340. Trachischium ? ruforiventer. 

 Cyclophis rubriventer, Jet-don, P. A. S. B. 1870, p. 80 ; Theob. Cat. 



One prae- and two postoculars ; 6 upper labials, the last three 



