922 MR. G, A. BOULENGER ON SOME [Dee. 1, 
Head once and two-thirds to twice as long as broad. Upper 
head-shields smooth, or frontoparietals and parietals slightly 
sculptured ; frontonasal as long as broad or longer than broad ; 
anterior supraocular not bordered with granules; interparietal 
small, separated from the very small occipital by one or two small 
shields ; an elongate shield on the outer border of the parietal ; 
temporal scales granular, smooth ; subocular usually bordering the 
lip, between the fifth and sixth or sixth and seventh, rarely 
seventh and eighth or eighth and ninth, upper labial shields ; the 
subocular, however, sometimes excluded from the labial border, its 
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point wedged in between two labial shields; the two or three 
anterior pairs of chin-shields in contact. Collar with 6 to 12 
shields. Dorsal scales granular, flat, smooth, 65 to 78 across the 
middle of the body. Six or eight longitudinal series of ventral 
plates, the outer series, if developed, formed of very narrow 
shields; 25 to 29 transverse series. A large median preanal, 
sometimes replaced by three smaller shields forming a triangle. 
The hind limb reaches the eye or between the eye and the nostril ; 
foot as long as the distance between the arm and the nostril or 
the tip of the snout, or slightly longer; scales on limbs unicarinate. 
15 to 22 femoral pores on each side. Tail twice to twice and a 
half as long as head and body; upper caudal scales strongly 
keeled. Whitish, pale greyish, yellowish or pale buff above, dotted, 
marbled, or vermiculate with blackish or rust-red, with a more or 
less distinct dark, light-edged vertebral stripe; limbs with large 
dark marblings. Young with five dark dorsal stripes separated by 
