578 MR. F. F. LAIDEAW OX THE [DeC. 3, 



especially Hypsirhina cnhydris, which I found on Gunong Inas far 

 aw ay from the river. 



23. Hypsiriii>*a plumbea (Boie). 

 Biserat. 



24. Hypsirhixa enhydbis (Schneid.). 

 Bi.serat, Kekabu, Guuong Inas. 



25. Hypsiriiixa bocourtii Jan. 



Hypsirhina bocourtii, Boulenger, Cat. Snakes, iii. p. 10; S. S. 

 Flower, P. Z. S. 1899, p. 676. 



At the hottest part of the year this snake, according to (he 

 Malays, leaves the swamps and goes out to deep water. A speci- 

 men was taken at Biserat along with Acrochordus javanicus. 



26. Homalopsis BrccATA (Linn.). 



27. Cerberus eiiyxchops (Schneid.). 

 Malacca. 



Suhfam. DirsAijOMoitrniN.r. 



28. Dipsadomorpiius dexdropiiilus (Boie). 



Dipsadomorphug dendrophUus, Boulenger. Cat. Snakes, iii. p. 70; 

 S. S. Flower, P. Z. S. 1896, p. 889 ; id. P. Z. S. 1899, p. 680. 



This species is nocturnal and much feared by the Malays, who 

 at the same time do not consider it particularly poisonous. In 

 the stomach of one of our specimens another snake was found, a 

 6econd had been feeding on large slugs. The Malays call this 

 species " Ular katam tebu" (" katam tebu " are the little pieces of 

 sugar-cane peeled aud stuck on skewers for sale in the markets) ; 

 the name obviously refers to the yellow rings on the body. Mr. 

 Annandale tells me that the same name is given to Bungarw 

 fasciatus and sometimes to the sea-snake. Common at Patalung, 

 Jalor, and Kuala Aring. It thumps the ground with its tail when 

 alarmed, making a loud knocking sound. 



29. Dipsabomorphus cy>"Odo>* (Boie). 

 Kuala Axing. 



30. DRyornis prasikus Boie. 

 Biserat, Kuala Aring, Ulu Selama. 



31. PSAMMODYXASTES PICTD8 Ptrs. 



Bukit Besar. 



32. Chrysopelea orxata (Shaw). 



Chrysopelea ornata, Boulenger, Cat. Snakes, iii. p. 196 ; id. 



