20 SNAKES FROM DEHLI 



10. Tropidonotus trianguligerus Schl. 

 Four specimens in Dr. Hagen's collection. 



11. Amphiesma rJiodomelas Schl. 

 Two specimens from Laboean. 



12. Amphiesma chrysargos Boie. 

 One specimen in Dr. Hagen's collection. 



13. Amphiesma jiaviceps D. & B. 



Five specimens from Laboean and Langkat have all one 

 praeocular and three postoculars , except one specimen with 

 four postoculars, and eight upper labials. The reddish band 

 behind the black ring round the neck occupies in one specimen 

 six rows of scales, in two others only five, and in the last 

 two specimens it is as broad as four rows. Especially the 

 colour of the head is darker than in Jan's figure ^), and the 

 white cross-bands along the sides of the tail are clearly 

 visible. 



14. Homalopsis buccatus L. 



Three specimens from Laboean, two from Langkat. 



15. Homalopsis boaeformis Schneid, 

 One specimen in Dr. Hagen's collection. 



16. Hypsirhina phimbea Boie. 

 One specimen in Dr. Hagen's collection. 



17. Hypsirhina Hageni, nov. spec. 



Head rather long , scarcely distinct from neck ; body and 

 tail short and stout. Scales polished, in 27 rows, those on 

 the middle of the back hexagonal, more long than broad, 

 those on the flanks lozenge-shaped, equally broad and long 



1) Jan, Iconographie générale des Ophidians, livraison 29, pi. 3, fig. I. 

 Notes from th.e I-ieyden Museum, Vol. Jf.II. 



