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Traditional and geometric morphometrics detect morphological variation of lower pharyngeal jaw in Coris julis (Teleostei, Labridae)

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  • C. Fruciano
  • C. Tigano
  • V. Ferrito

In the present study, variation in the morphology of the lower pharyngeal element between two Sicilian populations of the rainbow wrasse Coris julis has been explored by the means of traditional morphometrics for size and geometric morphometrics for shape. Despite close geographical distance and probable high genetic flow between the populations, statistically significant differences have been found both for size and shape. In fact, one population shows a larger lower pharyngeal element that has a larger central tooth. Compared to the other population, this population also has medially enlarged lower pharyngeal jaws with a more pronounced convexity of the medial-posterior margin. The results are discussed in the light of a possible more pronounced durophagy of this population.

Original languageEnglish
Pages (from-to)320-327
Number of pages8
JournalItalian Journal of Zoology
Issue number3
Early online date30 Mar 2011
Publication statusPublished - 1 Sep 2011

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