THE SNAKES OF BRITISH EAST AFRICA 47 
Genus Eryx — 
Thebaicus. — Total length 2 feet 2\ inches. Tail 2 inches, 
pointed. Yellowish or greyish above, with large, irregular, 
dark-brown or blackish spots separated by narrow interspaces ; 
lower parts uniform white. Found at Taita, East Africa. 
Family VII .—COLUBRIDAE. 
Series A. — Aglyyha. Sub-Family II. — Colubrinae. 
Genus Tro'pidonotus — 
Olivaceus. — Total length 1 foot 11 inches. Tail 5f inches. 
Olive or brown above, with a more or less distinct darker 
vertebral band, four or five scales wide, bordered on each side by 
Tropidonotus asperrimus 
From B . M . Cat . of Snakes . 
a series of whitish dots ; flanks and ends of ventrals olive ; 
upper lips yellowish, the sutures between the shields black ; 
ventrals yellowish, sometimes edged with olive. Found at 
Ngatana. 
Genus Boodon — 
Lineatus. — Total length 2 feet 10| inches. Tail 4J inches. 
Brown above, uniform or variegated with yellow, with or 
without a yellow lateral streak ; side of head light, the brown 
of the upper surface ending in a point on the snout, with a 
dark brown lateral streak passing through the eye, and brown 
