( 170 ) 



quadrangular. Two prseoculars, the lower small, the upper 

 touching the vertical. Two postoculars. 9 upper labials, the fifth 

 and sixth entering the orbit. Scales ovate, smooth, without 

 apical grooves, in 19 rows. Anal bifid. Colour yellowish olive 

 with distinct narrow black cross bars on the back, each half as 

 ■wide as the interspace. A lateral row of small black spots. 

 Belly yellowish with an irregular row of black dots on each side. 

 A black band between the eyes, an oblique streak below them, 

 another on the temples. A dark loreal spot and black median 

 line on the neck. 



Grows to 50 inches. 



Inhabits India, probably Western ; and Mesopotamia. 



Z. gracilis, Giinther. 



Prsefrontals half as large as postfrontals. Occipitals rounded 

 behind. Loreal square. Two prseoculars, the lower small, the 

 upper in contact with the vertical. Two postoculars. 9 upper 

 labials, the fifth and sixth entering the orbit. Scales elongate, 

 narrow, smooth in 21 rows, some with a pair of indistinct apical 

 grooves. *Anal bifid. Ventrals faintly keeled at the sides. 

 Colour yellowish olive with a single row anteriorly of laro-e 

 brown round spots, edged with black, the spots gradually dis- 

 appearing, their black edges remaining as cross bars, posteriorly, 

 and spots on the tail. A black streak across the snout. A brown 

 black edged bar between and below the eyes and another across 

 the occipitals. An irregular series of black spots on each side of 

 the belly, which is yellow. 



Grows to 33 inches. (Tail 10.) 



Inhabits Synd and the Dekkan. 



Z. fascidatus, Shaw. 



Coluber hebe, Baud. 

 C. curvirostris, Cantor. 

 Tyria fasciolata, Cope. 

 Rostral broader than high, protruding. Prsefrontals more than 

 half as large as postfrontals. Loreal square. A large prEeoculav 

 in contact with the vertical, usually a minute prEeoculai-, below 



