. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. CROCODILIANS, LIZARDS, AND SNAKES. 807. ZAMENIS LATERALIS Hallowell. Bascanium tceniatum laterale Cope, Check-list N. Amer. Batr. Rept., 1875, p. 40. Lepptophis lateralis Hallowell, Proc. Acad. Nat. Sci. Phila., 1853, p. 237; Pac. R. R. Report, X, 1859, Williamson's Report, p. 13, pi. iv, fig. 3. Form slender, head oval, distinct from body, tail a little less than one- third the total length. Scales in seventeen longitudinal rows; supe
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. CROCODILIANS, LIZARDS, AND SNAKES. 807. ZAMENIS LATERALIS Hallowell. Bascanium tceniatum laterale Cope, Check-list N. Amer. Batr. Rept., 1875, p. 40. Lepptophis lateralis Hallowell, Proc. Acad. Nat. Sci. Phila., 1853, p. 237; Pac. R. R. Report, X, 1859, Williamson's Report, p. 13, pi. iv, fig. 3. Form slender, head oval, distinct from body, tail a little less than one- third the total length. Scales in seventeen longitudinal rows; superior labials eight, the fourth and fifth bounding the orbit below. Muzzle not elongate nor decurved, but flattened, and its extremity but little prominent. Eostral plate slightly recurved on upper surface of muzzle, luternasals as wide as long. Frontal narrowed behind, half as wide as superciliary in adults. Parietals truncatemarginate posteriorly. Dorsal longer than high. Sixth superior labial truncate above; seventh and eighth longer than high. Nine inferior la- bials, the fifth largest. Postgeneials longer than pregeneials. Temporals 2-2-2. Color above, including ends of gastrosteges, plumbeous brown; below yellow. A yellow band extends from the neck to varying distances on the adjacent parts of the third and fourth rows of scales. Lateral head plates I'rom the preoculars forward, with yellow centers. Superior labials with brown splotches above, forming an irregular border, not brown bordered below. A yellow temporal spot. The posterior labial plates are longer than high, but are not so extended as in the Z. aurigulus. The inferior labials anterior to and including the fifth are also less eloirgate, the fourth being nearly square, while it is parallelogrammic in the Z. aurigulus. The muzzle, and hence the loreal plates, are shorter than in that form. The spotting of the inferior surface is confined to the chin, throat, and a dozen or so of gastrosteges. It consists of scatte
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