. The poisonous terrestrial snakes of our British Indian dominions, including Ceylon, and how to recognize them; with symptoms of snake poisoning and treatment. Snakes; Snakes. LACHESIS MONTICOLA—The Large-spotted Viper. Identification.—This is the only species that has no subocular shield, and this character will serve to diagnose it. Supplementary characters.— Internasals.—A pair, separated by from 1 to 3 small scales. Supraocular.—A single shield. Nasal.—Not united with 1st labial; no minute scales inter- calated between it and the 2nd labial. Suhocular absent; 2ncl labial furrowed in its u
. The poisonous terrestrial snakes of our British Indian dominions, including Ceylon, and how to recognize them; with symptoms of snake poisoning and treatment. Snakes; Snakes. LACHESIS MONTICOLA—The Large-spotted Viper. Identification.—This is the only species that has no subocular shield, and this character will serve to diagnose it. Supplementary characters.— Internasals.—A pair, separated by from 1 to 3 small scales. Supraocular.—A single shield. Nasal.—Not united with 1st labial; no minute scales inter- calated between it and the 2nd labial. Suhocular absent; 2ncl labial furrowed in its upper half, and forming the inner wall of the loreal pit. Scales.—Ante- FiG. 29.—Lachesis monticola (nat. size), rior usually 23 (rarely 25) ; midbody 23 (rarely 21 or 25) ; posterior 19 (rarely 21). Distribution.—The Himalayan region (from 2,000 to 8,000 feet), including hills of Assam, Burmah and Yunnan. Colonel Wad- dell, , in his book " Among the Himalayas " (p. 240) mentions it as common in Bhotan. I found it common in the Khasi Hills (Shillong), and in the Eastern Himalayas (below Darjeeling). Poison.—(See Part II, page 119.) Dimensions.—Grows to 8 feet. Colour.—Light brown or buff with large irregularly squarish patches or spots of black on the middle of the back, and a coarse mottling of these two hues in the flanks. Crown dark-brown with a buff V-bordered dark-brown below. Belly yellowish, uniform in front, obscurely spotted or mottled behind. LACHESIS CANTORrS-Cantor's Viper. Identification.—Most easily identified by the rows of scales in the middle of the body numbering Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wall, Frank, 1868-. Bombay, Bombay Natural History Society
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectsnakes, bookyear1913
