Sebone, M.M. & S.M. Dippenaar. (2023). Lophoura Kölliker in Gegenbaur, Kölliker & Müller, 1853 species (Copepoda: Siphonostomatoida: Sphyriidae) off South Africa with a key to all valid species. Systematic Parasitology. 100(4):1-17. [Apr 2023 online].

450084

10.1007/s11230-023-10091-7 [view]

Sebone, M.M. & S.M. Dippenaar

2023

100(4):1-17. [Apr 2023 online]

Publication

Available for editors   [request]

Lophoura Ko¨lliker in Gegenbaur, Ko¨lliker & Mu¨ller, 1853 is one of the eight genera of Sphyriidae which currently consists of 19 accepted species. Lophoura species are mesoparasites of various teleosts occurring worldwide. Post metamorphic females are highly transformed with longitudinally elongated cephalothoraces and elongated necks bearing holdfast organs anteriorly. The shape and structure of the holdfast organ is mostly the main character used for the identi?cation of species. Additionally, the structure of the posterior processes attached laterally to the perianal swelling on the posterior margin of the trunk is also used to distinguish different species. The posterior processes consist of a central porous peduncle with stalks of varying shapes and sizes. The morphology of Lophoura males bear resemblance to that of lernaeopodid males. Re-descriptions of the habitus of the post metamorphic females of L. tetraloba Ho & Kim I.H., 1989, L. cf. edwardsi Ko¨lliker, 1853, L. caparti (Nun´es-Ruivo, 1962) and L. cornuta (Wilson C.B., 1919), including notes on the immature females of L. tetraloba and L. cf. edwardsi, are provided. Additionally, information regarding the structure and position of some of the appendages of L. tetraloba, L. cf. edwardsi and L. caparti is provided. Furthermore, the study provides the ?rst illustrated descriptions of the male of L. tetraloba. A description is also done of an incomplete unidentied Lophoura species which differs from other accepted species. A morphological identi?cation key to post metamorphic females of all accepted Lophoura species is provided, as well as new host and geographical records of Lophoura species.

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