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A first report of relative movements within the hyoid apparatus during feeding inAnolis equestris (Reptilia: Iguanidae)

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Summary

The movements of the hyoid apparatus ofAnolis equestris, during mechanical reduction of prey, have been studied by cinefluoroscopy. In the SO and FO stages, ceratobranchials I move forward faster than the ceratohyals. Muscle stimulation experiments show that contractions of the m. ceratohyoideus and m. mandibulohyoideus I produce this movement. The other hyoid and extrinsic muscles of the tongue may be divided into protractors and retractors. In the FC-SC stage, the tongue-hyoid complex moves backward. The movements of ceratobranchials II follow those of the other elements after a short delay.

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Authors and Affiliations

  1. Laboratory of Functional Morphology, State University of Liège, Quai Van Beneden 22, B-4020, Liège, Belgium

    V. L. Bels & V. Goosse

Authors
  1. V. L. Bels
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  2. V. Goosse
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Bels, V.L., Goosse, V. A first report of relative movements within the hyoid apparatus during feeding inAnolis equestris (Reptilia: Iguanidae). Experientia 45, 1088–1091 (1989). https://doi.org/10.1007/BF01950165

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  • DOI: https://doi.org/10.1007/BF01950165

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