Plectanocotyle is a genus of monogeneans in the family Plectanocotylidae. It includes five species of parasites on the gills of fish.
Species According to a study funded by The Swedish Taxonomy Initiative, there are four valid species in this genus: Plectanocotyle gurnardi (Van Beneden & Hesse, 1863) Llewellyn, 1941 Plectanocotyle jeanloujustinei Cappelletti & Bouguerche, 2024 Plectanocotyle lastovizae Ayadi, Tazerouti, Gey & Justine, 2022 Plectanocotyle major Boudaya, Neifar & Euzet, 2006
Other Species Plectanocotyle elliptica Diesing, 1850: described probably based on a mutilated specimen, and most importantly, it was suggested that either the host fish had been misidentified or the specimen had been mislabeled as to origin (Price, 1961). It is considered currently a species inquirenda.
Plectanocotyle caudata Lebour, 1908: considered currently synonym of P. gurnardi.
Plectanocotyle lorenzii Monticelli, 1899: considered currently a species inquirenda.
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