100 



T. FRONTlCINCTUS, Gthr. 



Ventrals 190, subc. 140. Rostral small, nasals elongate, 

 contiguous. Grass-green or bronze, with black yellow-edged 

 lateral stripe. 



Swamps in Arakan. 



PASSERITA, Gray. 



Snout very long, ending in a flexible appendage ; no 

 loreal ; preocular region concave. Head-shields regular. 

 Scales 15. 



P. MYCTERizANS, L. The common green tree-snaJce. Plate 



XVI, fig. 5. 



Ventrals 172-188, subc. 140-166. Grass-green, with yellow 

 lateral stripe ; paler below ; black and white cross-bands, on 

 the interstitial skin. This is the most common tree-snake, 

 and is sometimes called the " eye-snake," in consequence of 

 an idea prevalent amongst otherwise sane Englishmen that 

 it is in the habit of hanging by the tail from a branch of a 

 tree for the purpose of hitting passers-by in the eye. It is 

 rare in Burma and hilly parts. Grows to 6 feet in length, 

 the tail being four-tenths. 



P. PURPUKASCENS, Gthr. 



Ventrals 194, subc. 154. Brownish grey, marbled with 

 purple and dotted with brown. 

 Ceylon. 



Family XVI.— DIPSADID^E. 

 Tree-snakes with vertical pupU, short broad head, very 

 distinct from neck, body compressed, elongate. Head-shields 

 regular. Scales smooth, imbricate, the vertebral series 

 enlarged. Anal entire. Last tooth elongate and grooved ■ the 

 front tooth also elongate sometimes. 



