Three new species of Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae) parasitic on Tylochromis jentinki (Steindachner, 1895) (Pisces, Cichlidae) in West Africa

Trois monogènes nouveaux : #Cichlidogyrus berrebii n. sp., #C. pouyaudi n. sp. et #C. kothiasi n. sp., parasites branchiaux de #Tylochromis jentini (Cichlidae), sont décrits en Afrique de l'Ouest (Côte d'Ivoire et Guinée). Ces trois nouvelles espèces sont considérées comme primitives à cause de la morphologie caractéristique de la barre transversale dorsale du hapteur, mais elles sont cependant situées dans le genre #Cichlidogyrus$. (Résumé d'auteur

Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae) : gill parasites from West African Cichlidae of the subgenus Coptodon Regan, 1920 (Pisces), with descriptions of six new species

Une étude des parasites branchiaux de poissons appartenant au sous-genre #Coptodon Regan, 1920 (#Cichlidae) : #Tilapia coffea Thys van den Audenaerde ; #T. dageti Thys van den Audenaerde ; #T. guineensis (Bleecker) ; #T. louka Thys van den Audenaerde ; #T. walteri Thys van den Audenaerde ; and #T. zillii (Gervais) ; provenant de différentes localités en Afrique de l'Ouest (Burkina Faso, Congo, Côte d'Ivoire, Guinée, Mali et Sénégal) a révélé la présence de 19 espèces du genre #Cichlidogyrus Paperna, 1960 (#Monogenea, #Ancyrocephalidae). Six sont considérées comme nouvelles : #C. amphoratus n. sp., #C. levequei n. sp., #C. microscutus n. sp., #C. ornatus n. sp., #C. ouedraogoi n. sp. et #C. yanni$ n. sp. Nous discutons de la spécificité de ces parasites. (Résumé d'auteur

A new species of Gyrodactylus (Monogenea, Gyrodactylidae), an ectoparasite from the endemic Iranocichla hormuzensis (Teleostei, Cichlidae), the only Iranian cichlid

Iranocichla hormuzensis occupies a biogeographically peculiar position. This endemic of southern Iran is the only Iranian cichlid. While it is phylogenetically related to African oreochromine members of the cichlid family, it remains unclear how it has dispersed into its current range. It is one of the many lasting enigmas of cichlid biogeography. Monogenean fish parasites may provide useful additional information in such cases. Therefore, I. hormuzensis was examined for these flatworms. A gyrodactylid parasite is reported and compared to congeners from the Palearctic and from cichlids. In this way, we verify whether it shows affinities to parasites from fishes that are either biogeographically or phylogenetically close to Iranocichla hormuzensis. The species is new to science and is described as Gyrodactylus jalalii sp. nov. This is the first description of a parasite infecting I. hormuzensis. Because of the fixation method or age of the material, DNA could not be isolated. Due to the lack of genetic data, no conclusions can be drawn on its phylogenetic positioning. Indeed, Gyrodactylus phylogeny cannot be inferred from morphological characteristics alone. Moreover, the congeners phenotypically reminiscent of the new species belong to a Gyrodactylus clade which is highly diverse in geographic range and host choice. Hence, there is no evidence linking the new species to an exclusively African or cichlid-bound Gyrodactylus lineage