. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. , LIZARDS, AND SNAKES. 1001 wide as liigh, obtusely rounded, visible from above. Internasals wider tliau long. Frontal with lateral and anterior borders straight and about equal, twice as wide as each superciliary. Tarietals longer than wide, truncate posteriorly. Nostril partially in the prenasal. Tem- porals 1-2, the first extending to middle of last superior labial. Seven upper labials on each side. Lower labials seven, of w
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. , LIZARDS, AND SNAKES. 1001 wide as liigh, obtusely rounded, visible from above. Internasals wider tliau long. Frontal with lateral and anterior borders straight and about equal, twice as wide as each superciliary. Tarietals longer than wide, truncate posteriorly. Nostril partially in the prenasal. Tem- porals 1-2, the first extending to middle of last superior labial. Seven upper labials on each side. Lower labials seven, of which the fourth and fifth are very large, extending quite to the mental. A second plate parallel with the sixth, rather longer. Pregeneials longer than postgeneials; the latter bounded behind by the generally undivided first gastrostege, which is separated from the labials by one row of scales. Exterior row of scales largest, rest diminishing gradually to the back; all keeled, the first weakly. Color grayish brown, sometimes chestnut-brown above and on the sides, with a dorsal stripe extending from occij)ut to the end of the tail, of a decidedly lighter tint, and about three and two half-scales in width. This is bordered along each outer edge by a series of rounded brown dots, occurring at intervals of about two scales; of these there are. 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 Smithsonian Institution. Board of Regents; United States National Museum. Report of the U. S. National Museum; Smithsonian Institution. Report of the Secretary. Washington : Smithsonian Institution
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Keywords: ., bookauthorsmithsonianinstitutio, bookcentury1800, bookdecade1840