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Two new gonad-infecting species of Philometra Costa, 1845 (Nematoda: Philometridae) from Trachinus spp. (Osteichthyes: Trachinidae) in the Gulf of Hammamet, Tunisia

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Abstract

Based on light and scanning electron microscopical studies, two new gonad-infecting species of Philometra Costa, 1845, P. draco n. sp. and P. radiata n. sp. (Nematoda: Philometridae), are described from the marine perciform fishes Trachinus draco (Linnaeus) and T. radiatus (Linnaeus) (both Trachinidae), respectively, in the Gulf of Hammamet, off the northeastern coast of Tunisia. Philometra draco n. sp. and P. radiata n. sp. can be separated from other gonad-infecting species of this genus by the structures associated to the gubernaculum (e.g. dorsal protuberance, smooth field separating the dorsolateral longitudinal parts), as well as by the length of the body, spicules and gubernaculum. Philometra radiata n. sp. can be distinguished from P. draco n. sp. in having the dorsal side of the gubernaculum distal end provided with a median longitudinal smooth field demarcated by two dorsolateral lamellate parts. These two new species are the first philometrid species described from fishes of the family Trachinidae.

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Acknowledgements

NG thanks her family for financial and personal support. Authors’ thanks are also due to Blanka Škoriková for help with the illustrations and the staff of the Laboratory of Electron Microscopy, both from the Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, České Budějovice.

Funding

This study was funded by the Ministry of Higher Education and Scientific Research of Tunisia and Unité de Recherche Bio-Écologie Animale et Systématique Évolutive, Faculté des Sciences, Université Tunis El Manar Tunisia; the Czech Science Foundation (Project P505/12/G112) and the Institute of Parasitology (RVO 60077344).

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Authors and Affiliations

  1. Unité de Recherche Bio-Écologie Animale et Systématique Évolutive, Faculté des Sciences, Université Tunis El Manar, 2092, Tunis, Tunisia

    Nessrine Ghanmi & Lamia Gargouri

  2. El Colegio de la Frontera Sur (ECOSUR), unidad Chetumal. Av. Centenario km. 5.5, 77014, Chetumal, Quintana Roo, Mexico

    David González-Solís

  3. Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 370 05, České Budějovice, Czech Republic

    David González-Solís

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  1. Nessrine Ghanmi
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Correspondence to David González-Solís.

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All applicable institutional, national and international guidelines for the care and use of animals were followed.

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This article was registered in the Official Register of Zoological Nomenclature (ZooBank) as EF06AF9F-5FCC-448E-815E-83D0C01F82A0. This article was published as an Online First article on the online publication date shown on this page. The article should be cited by using the doi number. This is the Version of Record.

This article is part of the Topical Collection Nematoda.

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Ghanmi, N., González-Solís, D. & Gargouri, L. Two new gonad-infecting species of Philometra Costa, 1845 (Nematoda: Philometridae) from Trachinus spp. (Osteichthyes: Trachinidae) in the Gulf of Hammamet, Tunisia. Syst Parasitol 95, 223–234 (2018). https://doi.org/10.1007/s11230-018-9774-4

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  • DOI: https://doi.org/10.1007/s11230-018-9774-4