8 COLUBEIDiE. 



slightly enlarged and six-sided ; ventrals rounded. Tail long ; 

 subcaudals in two rows. 



Burma, Malay Peninsula and Archipelago. 



1. Xenelaphis hezagonotus. 



Coluter hexahonotus, Cantor, Cat. Mai. Rept. p. 74 (1847). 

 Coryphodon subluteacens, Bum. ^ Bih: yii. p. 187 (1854). 



hexanotus, Gunth. Cat. p. 110 (1858). 



Xenelaphis hexahonotus, Gunth. Sept. Brit. Ind. p. 251, pi. xxi. 



fi^. (1864). 

 Ptyas hexagonotus, Theob. Cat. Bept. Brit. Ind. p. 168 (1876). 

 Xenelaphis hexagonotus, Bouleng. Faun. Ind., Bept. p. 336 (1890). 



Eostral broader than deep, visible from above ; internasals as long 

 as or a little longer than the prsefrontals ; frontal once and one 

 third to once and a half as long as broad, as long as its distance 

 from the end of the snout, a little shorter than the parietals ; loreal 

 nearly as long as deep ; one prseocular, with a rather large sub- 

 ocular below it, wedged in between the third and fourth upper 

 labials ; two postoculars, with a large subocular below, separating 

 the eye from the fifth and sixth labials ; a third subocular occa- 

 "sionally present, separating the eye altogether from the labials; 

 temporals 2-|-2 ; normally eight upper labials, fourth entering the 

 eye ; four or five lower labials in contact with the anterior chin- 

 shields, which are as long as the posterior. Scales smooth, in 17 

 rows. Ventrals 185-198 ; anal divided ; subcaudals 140-179. 

 Brown above, with blact cross bands, which become indistinct with 

 age, on the anterior half of the body ; old specimens showing mere 

 traces of the outer ends of these bands ; lower parts uniform 

 yellowish. 



Total length 1650 miUim. ; tail 600. 



Burma, Malay Peninsula, Borneo, Sumatra, Java. 



a. Yg. (V. 188; C. 148). Pinang. Dr. Cantor. (Type.) 



6, c. d (V. 187 ; 0. 140) Singapore. Gen. Hardwicke [0.]. 

 & ? (V.198;C. 140). 



d. tJ (V. 191 ; C. 149). Singapore. W. T. Blanford, Esq. [P.! 



e. $ (V. 190 ; C. 144). Borneo. L. L. Dillwyn, Esq. [P.]. 

 /. d (V. 185 ; C. 179). Borneo. Sir J. Brooke fP.]. 



g. d (V. 190 ; C. ?). Rejang R.,^ Sara^ Brooke Low, Esq. [P.]. 



wak. 



A. tJ (V. 187; C. 173). ? Dr.Bleeker. (Dendrophis 



dumerilii, Blkr.) 

 I. Yg. (V. 192; C. 176). ? Dr.Bleeker. (Ablabes 



k. Skull. Sarawak. 



polyhemizona, Blkr.) 



57. DRYMOBIUS. 



Coluber, part., Schleg. Phys. Serp. ii. p. 125 (1837) ; Dum. ^ Bibr. 



M6m. Ac. Sc. xxiii. 1863, p. 455. 

 Herpetodryas, part., Schleg. I, c. p. 173 ; Dum, & Bibr. Erp. G4n. vii 



