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Species of Lepidapedon Stafford, 1904 (Digenea: Lepidapedidae) from deep-sea fishes in the Western Mediterranean: molecular and morphological evidence

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Abstract

The species diversity of Lepidapedon Stafford, 1904 (Lepidapediae) in the Western Mediterranean was assessed based on samples from five deep-sea gadiform fishes collected between the Balearic Islands and the Catalonian coast of Spain: Lepidion lepidion (Risso) and Mora moro (Risso) (both Moridae); Coelorinchus mediterraneus Iwamoto & Ungaro and Trachyrincus scabrus (Rafinesque) (both Macrouridae); and Phycis blennoides (Brünnich) (Phycidae). Integration of morphological and molecular evidence (28S rRNA gene and the mitochondrial nad1 gene) revealed that the deep-sea fishes in the Western Mediterranean share two species of Lepidapedon. Lepidapedon desclersae Bray & Gibson, 1995 was recovered in all five fish species of three families [Moridae (L. lepidion and M. moro); Macrouridae (C. mediterraneus and T. scabrus); and Phycidae (P. blennoides)] and L. guevarai Lopez-Roman & Maillard, 1973 was recovered in three fish species of three families [Phycidae (P. blennoides); Macrouridae (T. scabrus); and Moridae (L. lepidion)]. Therefore, both species are considered to be euryxenic but restricted to gadiforms. The voucher material for the two species from different fish hosts is described in detail and the host-related variability based on the morphometric data is assessed.

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Acknowledgements

We thank two anonymous reviewers for their constructive comments.

Funding

This study was supported by the Spanish Ministry of Science and Innovation (MICINN) projects (ANTROMARE CTM2009-12214-C02-02 to MCa, MCo, SD and APDO and AGL2015-68405-R to APDO), the Czech Science Foundation (project P505/12/G112 to AK, APDO and SG) and Valencian Local Government (PROMETEO 2015-018 to APDO). SG benefited from a postdoctoral fellowship ‘Juan de la Cierva-Formaciónʼ of the MICINN (FJCI-2016-29535), Spain.

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Correspondence to Ana Pérez-del-Olmo.

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Pérez-del-Olmo, A., Dallarés, S., Georgieva, S. et al. Species of Lepidapedon Stafford, 1904 (Digenea: Lepidapedidae) from deep-sea fishes in the Western Mediterranean: molecular and morphological evidence. Syst Parasitol 96, 149–169 (2019). https://doi.org/10.1007/s11230-019-09845-z

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