50 MH. W. THEOBALD, JUN., ON THE 



Hum suturam formant. Sexto labiali superiore maximo, ad 



medium seeundi seuti mentalis tendente. 

 Colore rubro-brumieo, subter flavescente pallido. Longitu- 



dinis 21-00 unc. (1 uncia caudae fracta). 

 Specimen captum fuit in insulis Andamanicis (Port Blair), et 



Societati Asiatics© Bengalensi donatum a Lt.-Col. Tytler, 



insularum Guberuatore. 



Aspect of Hypsirldna. Scales smooth, in seventeen rows. 

 Nostril lateral, almost dividing a smallish oblong nasal. Prontals 

 two pairs, Loreal elongate. Anjil and subcaudals bifid. Eye 

 small ; pupil vertical. 



Habit moderate, with mucli the aspect of Ilypsirliina enliydris. 

 Head-shields normal. Anterior frontals slightly pentagonal, half 

 tlio size of the posterior frontals. Nasal a trifle smaller than tlie 

 loreal. Anteocular one, reaching to the vertical. Postoeulars 

 two, small. Vertical straight in front, sides rapidly converging 

 behind. Superciliaries moderate, broad behind, Occipitals 

 moderate. Upper labials ninei | the third, fourth, and fifth entering 

 the orbit. Two pairs of chin-shields touching each other. Sixth 

 lower labial largest, reaching to the middle of the second chin- 

 shield. 



Colour uniform reddish brown above. Belly yellowish white, 

 Length 21 inches (about an inch of tail is lost). 



Presented to the Asiatic Society of Bengal, fi'om the Andamans, 

 by Lt.-Col. Tytler, Avheu Governor of the settlement. 



Atiietium, Cope. 

 A. SCHISTOSUM, Daud. * * 



This species I have not met with myself in Birraa. 



Xenocheophis, Giinther. 

 X. cebaso&asteb, Cantor * *. 

 This species I have not met with myself in Birma. 



