THE PRINCIPAL SPECIES OF POISONOUS SNAKES 137 
D. subcincta.—Trunk with 41 broad dark cross-bands, about as 
broad as the interspaces, not extending downwards to the middle 
of the side; a series of small roundish, blackish spots along the 
lower part of the sides. 
Total length, 1,070 millimetres ; tail 100. 
Habitat : Indian Ocean. 
Fic. 81.—SKULL oF Distira. 
(After G. A. Boulenger, op. cit.) 
D. cyanocincta.—Greenish-olive above, with dark olive or black 
cross-bars or annuli, broader on the back, and sometimes joined by 
a black band along the belly, or yellowish, with a black vertebral 
stripe and a few bars on the neck. 
Total length, 1,500 millimetres ; tail 140. 
Habitat: From the Persian Gulf and the coasts of India to 
China, Japan, and Papuasia. 
D. gerdonit.—Olive above, yellowish on the belly, with black 
cross-bands forming complete rings in young~- and half-grown 
