The description of a few doubtful new species in the past years has lead us to undertake a review of all the Jaton species living in the East Atlantic waters of West Africa. Four species are recognised as valid: Jaton decussatus (Gmelin, 1791), Jaton hemitripterus (Lamarck, 1816), Jaton sinespina Vermeij & Houart, 1996 and Jaton flavidus (Jousseaume, 187 4 ). Only the latter shows a constant appearance and can easily be separated from the other Jaton species. Jaton westsahariensis Franchi, 2007 and Jaton rikae Petuch & Berschauer, 2019 are treated asjunior synonyms. After studying dozens of specimens we have toascertain that an important part of the material shows a transition between the extreme forms used in the original descriptions.
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