Lophoura Kölliker in Gegenbaur, Kölliker & Müller, 1853 species (Copepoda: Siphonostomatoida: Sphyriidae) off South Africa with a key to all valid species.
{"title":"Lophoura Kölliker in Gegenbaur, Kölliker & Müller, 1853 species (Copepoda: Siphonostomatoida: Sphyriidae) off South Africa with a key to all valid species.","authors":"Makwena M Sebone, Susan M Dippenaar","doi":"10.1007/s11230-023-10091-7","DOIUrl":null,"url":null,"abstract":"<p><p>Lophoura Kölliker in Gegenbaur, Kölliker & Müller, 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 identification 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 Kölliker, 1853, L. caparti (Nuńes-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 first 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 identification key to post metamorphic females of all accepted Lophoura species is provided, as well as new host and geographical records of Lophoura species.</p>","PeriodicalId":54436,"journal":{"name":"Systematic Parasitology","volume":null,"pages":null},"PeriodicalIF":1.0000,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Systematic Parasitology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s11230-023-10091-7","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PARASITOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Lophoura Kölliker in Gegenbaur, Kölliker & Müller, 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 identification 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 Kölliker, 1853, L. caparti (Nuńes-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 first 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 identification key to post metamorphic females of all accepted Lophoura species is provided, as well as new host and geographical records of Lophoura species.
期刊介绍:
Systematic Parasitology publishes papers on the systematics, taxonomy and nomenclature of the following groups: Nematoda (including plant-parasitic), Monogenea, Digenea, Cestoda, Acanthocephala, Aspidogastrea, Cestodaria, Arthropoda (parasitic copepods, hymenopterans, mites, ticks, etc.), Protozoa (parasitic groups), and parasitic genera in other groups, such as Mollusca, Turbelleria, etc. Systematic Parasitology publishes fully illustrated research papers, brief communications, and fully illustrated major revisions. In order to maintain high standards, all contributors describing new taxa are asked to state clearly where the holotype is deposited and to make paratypes available for examination by the referees. It is recognized that, in some cases, this may cause problems for the authors, but it is hoped that by adhering to this rule authors may be protected against rapid synonymy of their taxa, and the types will be preserved for posterity.