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tipped, with two band like yellow blotches on one side and three 

 on the other. Beneath white, yellow on chin. 



Another specimen had a conspicuous dark median line beneath 

 the tail but no spots. In Giinther's type the ventrals and sub- 

 caudals are described as densely punctated with brown, the 

 margins remaining immaculate. Grows to 8 or 9 inches. 



Inhabits Siam, Tonghu, Eangun &c. 



C. catenata Blyth. J. A. S, B., 1854, p. 287. 



Colour above dusky, black speckled on a pale ground. Below 

 pale buff with an iridescent lustre, with a lateral series of square 

 black spots mostly on alternate scuta. Four black lines above, 

 separated by a pale mesial streak, simple on the tail but on the 

 body broken up into a cateniform line of spots. An imperfect 

 whitish buff collar. 



Grows to 17 inches. 

 Inhabits Assam. 



Macrocalamus, Gilnther. 



Body cylindrical. One pair of frontals. Nasal simple. Nostril 

 between nasal and first labial. Loreal none, united with frontal. 

 One Prse and one postocular. Eight upper labials. Scales smooth 

 in 13 rows. Anal entire. Subcaudals divided. 



M. lateralis, Giinther. 



Frontals bent down to the second and third labials. The fourth 

 and fifth labials enter the orbit, the seventh is largest. Six lower 

 labials, the first pair touching, behind the mental. 



Colour brown. A dark brown band enclosing a chain of whitish 

 dots runs along the side, bordering the belly. Back with two 

 series of indistinct brownish black spots and an irregular series 

 of small black dots along each side of the belly. Beneath 

 whitish. A blackish subcaudal band. 



Length 12 inches. 

 Inhabits India (?) 



