. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. postorbitals ; eight upper labials, the third, fourth, and fifth enter- ing the orbit (the third with its posterior angle only) ; the seventh labial forms only a small portion of the lip, and on one side it is * Proc. Acad. Nat. Sc. Philad. 1862, p. 75. t Mr. Cope's general observations on the species of these genera are perfectly correct, and the divisions proposed by him are most convenient for the determi- nation of the species, but they do not appear to me to be more natur
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. postorbitals ; eight upper labials, the third, fourth, and fifth enter- ing the orbit (the third with its posterior angle only) ; the seventh labial forms only a small portion of the lip, and on one side it is * Proc. Acad. Nat. Sc. Philad. 1862, p. 75. t Mr. Cope's general observations on the species of these genera are perfectly correct, and the divisions proposed by him are most convenient for the determi- nation of the species, but they do not appear to me to be more natural groups than those which we had before ; for instance, Liophis Reginee is certainly more closely allied to L. Merremii and to L. Cobella than to Dromicus TemminckU; yet L. Re- gints and D. TemmincMi are united into one group, and the two others into another. L. conirostris cannot be separated from L. Reginm. And if Liophis and Dromicus be brought into so close a proximity as they are by Mr. Cope, Zamenis and certain species of Coronella, Leptodira, &c., cannot be kept at a 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 London, Taylor and Francis, Ltd
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