The southernmost record of Felimida elegantula (Philippi, 1844) (Gastropoda: Nudibranchia)
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The southernmost record of the Mediterranean nudibranch Felimida elegantula (Philippi, 1844) is reported here. A single specimen, with a colour pattern that hampered an easy morphological identification, was collected at the Kerkennah Islands (Tunisia). DNA-barcoding analysis (with the cytochrome c oxidase subunit I genetic marker) unambiguously confirmed its identification, and radular and anatomical features conformed with those previously described. With this record, the chromatic polymorphism of F. elegantula is demonstrated to be extremely large and the known range of the species is extended to the African coast of Tunisia.
KeywordsDNA barcoding Mollusca Nudibranch Felimida New record Mediterranean
We are grateful to Egidio Trainito (Olbia, Italy) for providing F. elegantula photographs. We wish to thank the University of Roma Tre for financial support and for access to the Electron Microscopy Interdepartmental Laboratory, and to two anonymous reviewers for helpful comments on the manuscript.
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