184/.] Malayan Peninsula ami Islands. 021 



Habits and general appearance link the present species to Col. 

 dhumnades, Cantor,* and Col. mucosus, Linne {Col. blumenbachii, 

 Merrem,) but the latter as well as its variety with uniformly smooth 

 scales {Col. dhumna, Cantor : Spicil.) utter when irritated a peculiar 

 diminuendo sound, not unlike that produced by a gently struck tuning- 

 fork. 



Coluber korros, Reinwardt. 

 Syn. — Coluber korros, Reinwardt, apud Wagler, Schlegel. 



Brownish green above, the scales of the posterior part of the trunk 

 and of the tail with black points and edges, producing a regular net- 

 work ; beneath yellowish white or pearl-coloured ; the lateral part of 

 the scuta light bluish-grey. Iris bright yellow with a bluish grey or 

 blackish concentric ring, tongue black. 



Young. — Above with some indistinct transversal bands, produced by 

 two lateral white spots on some of the scales ; the posterior part of 

 the trunk with dark longitudinal lines. 



Scuta 162 to 190 ; Scutella 79 to 136. 

 Habit. — Pinang, Singapore, Malayan Peninsula. 

 Java, Sumatra, Arracan, Tenasserim. 

 It is numerous in the Malayan vallies. The largest individual 

 measured : 



Length of the head, ft. If inch. 



Ditto ditto trunk, 2 6f 



Ditto ditto tail, 1 4f 



3 ft. 11| inch. 

 Greatest circumference of the trunk 3 inches. 



Its habits are similar to those of the last mentioned species, from 

 which it is easily distinguished by its 1 5 longitudinal series of smooth 

 rhomboidal scales with rounded points. 



Coluber hexahonotus, N. S. 

 Head and back dark brown, changing to pale brownish buff on the 

 sides ; trunk with numerous, close, transversal black bands, each with 



* Chusan.— It is covered by 14 to 16 long it. series of rhomboidal scales, of which 

 those of the two uppermost scries commence at a short distance from the hea<l, exhibiting 

 the central raised line. 



