@article{fdi:010079004, title = {{S}ix new species of {C}ichlidogyrus {P}aperna, 1960 ({P}latyhelminthes : {M}onogenea) from the gills of cichlids ({T}eleostei : {C}ichliformes) from the {L}omami {R}iver {B}asin ({DRC} : {M}iddle {C}ongo)}, author = {{G}eraerts, {M}are and {B}ukinga, {F}. {M}. and {V}anhove, {M}. {P}. {M}. and {P}ariselle, {A}ntoine and {M}anda, {A}. {C}. and {V}reven, {E}. and {H}uyse, {T}. and {A}rtois, {T}.}, editor = {}, language = {{ENG}}, abstract = {{B}ackground {M}onogenea van {B}eneden, 1858 is a group of parasitic flatworms, commonly found infecting bony fish. {S}everal genera, such as {C}ichlidogyrus {P}aperna, 1960, are reported to include potential pathogenic species that can negatively impact aquaculture fish stocks. {T}hey can switch from introduced to native fish and vice versa. {I}n {A}frica (and all over the world), fish species belonging to {C}ichlidae are often kept in aquaculture and represent a major source of food. {T}hus, research on the biodiversity and occurrence of monogenean species on these fish is of importance for aquaculture and conservation. {T}he present study is a survey of the diversity of species of {C}ichlidogyrus in the south of the {D}emocratic {R}epublic of the {C}ongo ({DRC}) on three cichlid species: {O}rthochromis sp. '{L}omami', {S}erranochromis cf. macrocephalus, and {T}ilapia sparrmanii {S}mith, 1840. {M}ethods {S}pecimens of {C}ichlidogyrus were isolated from the gills and mounted on glass slides with {H}oyer's medium. {T}he genital and haptoral hard parts were measured and drawn using interference contrast. {R}esults {I}n total, six species of {C}ichlidogyrus were found, all new to science: {C}. bulbophallus n. sp. and {C}. pseudozambezensis n. sp. on {S}. cf. macrocephalus, {C}. flagellum n. sp. and {C}. lobus n. sp. on {T}. sparrmanii, {C}. ranula n. sp. on {S}. cf. macrocephalus and {O}rthochromis sp. '{L}omami', and {C}. maeander n. sp. found on {O}rthochromis sp. '{L}omami' and {T}. sparrmanii. {T}he first four species are considered to be strict specialists, {C}. ranula n. sp. an intermediate generalist and {C}. maeander n. sp. a generalist. {T}hese parasite species show morphological similarities to species found in the {L}ower {G}uinea and {Z}ambezi ichthyofaunal provinces, which might be explained by past river capture events between river systems of the {C}ongo {P}rovince and both these regions. {C}onclusions {S}erranochromis cf. macrocephalus and {O}rthochromis sp. '{L}omami' can harbour respectively three and two species of {C}ichlidogyrus, all described in this study. {T}ilapia sparrmanii can harbour seven species, of which three are described in the present study. {T}hese results highlight the species diversity of this parasite genus in the {C}ongo {B}asin.}, keywords = {{A}frica ; {DRC} ; {C}ichlidae ; {M}onogenea ; {C}ichlidogyrus ; {S}erranochromis ; {T}ilapia ; {O}rthochromis ; {D}iversity ; {REPUBLIQUE} {DEMOCRATIQUE} {DU} {CONGO} ; {LOMAMI} {BASSIN}}, booktitle = {}, journal = {{P}arasites and {V}ectors}, volume = {13}, numero = {1}, pages = {art. 187 [20 p.]}, ISSN = {1756-3305}, year = {2020}, DOI = {10.1186/s13071-020-3927-4}, URL = {https://www.documentation.ird.fr/hor/fdi:010079004}, }