Summary
An incipient form of tongue projection occurs inPhrynocephalus helioscopus, a generalized agamid lizard. We argue that this condition represents a functional intermediate between typical lingual prehension and chamaeleontid tongue projection, and that tongue projection evolved in chameleons by augmentation of ancestral mechanisms still operating in related, generalized lizards.
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References
Duméril, C. C. r. Acad. Sci. Paris2 (1836) 228.
Houston, J., Trans. Roy. Irish Acad.15 (1828) 177.
Duvernoy, G. L., C. r. Acad. Sci. Paris2 (1836) 349.
Cuvier, G., Leçons d'Anatomie Comparée, v. 3. C. Duméril, Paris 1805.
Brücke, E., Sber. Akad. Wiss. Math.-Naturwiss. Cl.8 (1852) 65.
Kathariner, L., Jena. Zeit. Naturwiss.29 (1895) 247.
Gnanamuthu, C. P., Proc. zool. Soc. Lond.B107 (1937) 1.
Altevogt, R., and Altevogt, R., Zeit. vergl. Physiol.36 (1954) 66.
Gans, C., Nat. Hist.76 (1967) 52.
Schwenk, K., in: Phylogenetic Relationships of the Lizard Families. Eds R. Estes and G. Pregill. Stanford Univ. Press, Stanford, Calif. 1988 (in press).
Gauthier, J., Estes, R., and de Queiroz, K., in: Phylogenetic Relationships of the Lizard Families. Eds R. Estes and G. Pregill. Stanford Univ. Press, Stanford, Calif. 1988 (in press).
Estes, R., de Queiroz, K., and Gauthier, J., in: Phylogenetic Relationships of the Lizard Families. Eds R. Estes and G. Pregill. Stanford Univ. Press, Stanford, Calif. 1988 (in press).
Camp, C. L., Bull. Am. Mus. nat. Hist.48 (1923) 289.
Schwenk, K., and Greene, H. W., J. Herpet.21 (1987) 134.
Bell, D. A., thesis, Westfälische Wilhelms-Univ., Münster 1984.
Schwenk, K., and Throckmorton, G., in preparation.
Gorniak, G. C., Rosenbeg, H. I., and Gans, C., J. Morphol.171 (1982) 321.
Moody, S. M., thesis, Univ. of Michigan, Ann Arbor 1980.
Gnanamuthu, C. P., Proc. zool. Soc. Lond.31 (1930) 467.
Schwenk, K., J. Morphol.188 (1986) 129.
Smith, K. K., J. Zool., Lond.202 (1984) 115.
Schwenk, K., and Bell, D. A., Am. Zool.26 (1986) 65 A.
Bramble, D. M., and Wake, D. B., in: Functional Vertebrate Morphology, p. 230. Eds M. Hildebrand, D. M. Bramble, K. F. Liem and D. B. Wake. Belknap Press, Cambridge, Mass. 1985.
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Schwenk, K., Bell, D.A. A cryptic intermediate in the evolution of chameleon tongue projection. Experientia 44, 697–700 (1988). https://doi.org/10.1007/BF01941032
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DOI: https://doi.org/10.1007/BF01941032