. 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. Jhi. 50 THE POISONOUS SNAKES OP INDIA. LACHESIS MUCROSQUAMATUS-The Formosan Viper. Identification.—The scales in the posterior part of the body number 21 or 19, the nasal not united to the 1st labial, and the presence of a subocular establish the diagnosis, but all three characters must co-exist. Supplementary characters. In- ternasals.—A pair separated by from 2 to 4 small scales. Supra- ocular.—A single shield. Nasal
. 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. Jhi. 50 THE POISONOUS SNAKES OP INDIA. LACHESIS MUCROSQUAMATUS-The Formosan Viper. Identification.—The scales in the posterior part of the body number 21 or 19, the nasal not united to the 1st labial, and the presence of a subocular establish the diagnosis, but all three characters must co-exist. Supplementary characters. In- ternasals.—A pair separated by from 2 to 4 small scales. Supra- ocular.—A single shield. Nasal —Not united with the 1st labial, one or more minute scales intercalated between it „_,JI ,„ o J 1 1 • n r, . Fl&-32—Laohesis mucrosquamatus. and the 2nd labial. Subocular („,,. ,i,,). not touching the 3rd labial, ^nd labial with a furrow in its upper part directed into the loreal pit. ScaZes.—Anterior, 25 to 27; midbody, 23 to 27 ; posterior, 19 to 21. Distribution.—l<iaga Hills, Assam ; also Formosa. Poisow.—Nothing known. Dimensions.—Grows to 3^ feet. CoZowr.—Brownish with 3 longitudinal series of blackish spots, the vertebral series being the largest. Belly mottled brownish and white, or uniform whitish. LACHESIS JERDONI-Jerdon's Viper. Identification—The subocular touching the 3rd labial to- gether with 7 to 8 supralabials make diagnosis certain. Supplementary characters. Internasals.—A pair, separated by from 1 to 3 small scales. Supraocular.—A single shield preceded by an enlarged shield peculiar to this species. Nasal not united with 1st labial ; small scales may or may not be intercalated between it and the ^,^. jerdoni (nat. size).. 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
