COLTTBEIDiE. 



2. Two internasals : ventrals 141-156. 



Scales in 27 rows ; rostral considerably 



broader tban deep 12. albomaculata, p. 11.^ 



Scales in 29 to 33 rows ; rostral nearly as 



deep as broad ., . . . 13. sieholdii, p. 11. 



II. Eye separated from the labials. 



Scales in 25 or 27 rows ; a single inter- 

 nasal ; a single pair of lower labials in 

 contact behind the symphysial 14. punctata, p. 12, 



Scales in 31 or 33 rows ; two internasals ; 

 two pairs of lower labials in contact 

 behind the symphysial , . 15. dorice, p. 13. 



1. Hypsirhina indica. (Plate I. fig. 1.) 



Kaclitia indica, Oray, Zool. Misc. p. 67 (1842), and Cat. p. 79' 

 (1849). 



Rostral broader than deep ; internasals distinct ; frontal as broad', 

 as or narrower than the supraocular (which appears to have fused 

 with an upper postocular), little longer than broad, as long as its 

 distance from the rostral or the end of the snout, shorter than the 

 parietals ; loreal longer than deep, in contact with the internasal ;. 

 one prse- and one postocular ; temporals 1 + 2 ; eight upper labials,, 

 fourth entering the eye ; four lower labials in contact with the 

 anterior chin-shields, which are longer than the posterior ; the latter 

 separated from each other by scales. Scales in 19 rows. Ventrals- 

 173-175 ; anal divided ; subcaudals 28-34. Dark purplish brown> 

 above, with a few interrupted, yellowish, transverse lines on the 

 occiput and anterior part of the body ; sides with yellowish (red ?) 

 vertical bars ; belly yellowish (red ?), spotted with black. 



Total length 345 millim. ; tail 40. 



Malay Peninsula? 



a, b. cJ (V. 173 ; C. 84) Malay Peninsula ? Gen. Hardwicke [P.!.. 

 & ? (V. 175; 0.28). (Types.) 



2. Hypsirhina alternans. 



Brachyorrhos alternans, Beuss, Mus. Senckenb. i. p. 155, pi. ix fig 3- 

 (1834). *■ 



Plomalopsis decussata, Schleg. Phys. 8erp. ii. p. 344, pi. xiii. fi^g 14_ 

 16 (1837). 



Miralia alternans, Gray, Zool. Misc. p. 68 (1842), and Cat p 79- 

 (184D) ; Giinth. Cat. p. 277 (1858), and Proc. Zool. Soo. 1872 

 p. 590. ' 



Eurostua alternans, JDum. Sf Bibr. vii. p. 957 (1854). 



Hypsirhina alternans, Jan, JElenco, p. 78 (1868) ; Arch. Zool. Anat. 

 Phys. iii. 1865, p. 262, and Icon. Gin. 80. pi. vi. figs. 1 & 2 (1868) • 

 Boetty. Ber. Offenb. Ver. Nat. 1892, p. 133. ' 



Eostral broader than deep ; internasals distinct ; frontal broader 

 than the supraocular, once and one third to once and a half as- 



