Malayan Peninsula and Islands. 05 



Elaps boaeformis, Schneider. 

 Enhydrus rhynchops, Latreille. 

 Hydrus cinereus, Shaw. 

 Hurria schneideriana, Daudin. 

 Coluber schneiderianus, Daudm. 

 Coluber cerberus, Daudin. 

 Python rhynchops, Merrem. 

 Python elapiformis, Merrem. 

 Python molurus, Merrem. 

 Coluber obtusatus, Reinwardt. 

 Cerberus (Homalopsis obtusatus), Cuvier. 

 Homalopsis schneiderii, Schlegel. 

 Cerberus cinereus, Cantor. 



Young. Ash-coloured above, the head with black irregular spots 

 and a short black line behind the eyes ; trunk and tail with numerous 

 distant black transversal bands ; lips and throat white, dotted with 

 black ; the three or four lowest series of lateral scales white ; beneath 

 white" with a black undulating band, frequently interrupted. 



Adult. — Ash, lead-coloured or blackish grey with the black marks 

 indistinct or invisible. Iris black ; pupil elliptical, vertically contracted 

 by the light ; tongue very small, pale greyish. 



Scuta 143 to 156, Scutella 49 to 72. 



Habit. — Malayan Peninsula and Islands. 



New Guinea, Amboina, Timor, Sarapua, Java, Sumatra, 

 Tenasserim, Bengal, Coromandel. 

 The shields of the upper part of the head, which appear to be of a 

 constant form, are the nasals, the frontals, which enclose the small 

 pair of triangular anterior frontals, (sometimes soldered together,) and 

 the supra-orbitals. The rest are broken up in small, irregular, smooth 

 pieces, differing in outline in each individual. The small eye, placed 

 in a partly vertical, partly lateral position, is surrounded by a prae-orbital 

 a post-orbital and two or three infra-orbitals. The frenal is comparatively, 

 large, irregularly tetragonal. The anterior seven upper labials are 

 narrow, very high ; the posterior five or six each divided in two. A 

 similar arrangement is observed in the inferior 1 3 or 1 4 of which the 

 posterior 6 or 7 are very small. On the chin there is a pair of elongated 

 shields immediately behind the 2 pair of labials. The posterior upper 

 maxillary tooth is longer than the rest, and furrowed. The three 

 anterior teeth in the lower jaw are longer than the rest. The trunk 

 is covered with imbricate, finely lineated and keeled scales, of a rhom- 



