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4 Acta Parasitologica

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The first record of Macrogyrodactylus species [Monogenea, Gyrodactylidae] on freshwater fishes in Senegal with the description of Macrogyrodactylus simentiensis sp.nov., a parasite of Polypterus senegalus Cuvier

100%

Prikrylova I. , Gelnar M.

Acta Parasitologica

2008

tom 53

nr 1

The first record of monogenean parasites of the genus Macrogyrodactylus Malmberg, 1957 on freshwater fish in Senegal is presented. Macrogyrodactylus congolensis Prudhoe, 1957 from the skin and Macrogyrodactylus heterobranchii N’Douba et Lambert, 1999 from the gills of Clarias anguillaris L. were found, representing new host records for these parasites. On Polypterus senegalus Cuvier, three Macrogyrodactylus species were identified, Macrogyrodactylus polypteri Malmberg, 1957, Macrogyrodactylus simentiensis sp. nov. and Macrogyrodactylus sp. M. simentiensis sp. nov. can be readily distinguished from the other Macrogyrodactylus species by the size of its hamuli and the shape of its marginal hook sickles. The marginal hooks on the anterolateral lobes of M. simentiensis differ in size and shape from those on the posterior margin of the haptor. Measurements and drawings of the haptoral sclerites of all five identified species are provided.

Dactylogyrus spp. (Monogenea, Dactylogyridae) from the gills of Enteromius spp. (Cypriniformes, Cyprinidae) from the Limpopo Province, South Africa with descriptions of three new species

80%

Raphahlelo M. E. , Prikrylova I. , Matla M. M.

Acta Parasitologica

2020

tom 65

nr 2

Gyrodactylus malalai sp. nov. (Monogenea, Gyrodactylidae) from Nile tilapia, Oreochromis niloticus (L.) and Redbelly tilapia, Tilapia zillii (Gervais) (Teleostei, Cichlidae) in the Lake Turkana, Kenya

80%

Prikrylova I. , Radim B. , Gelnar M.

Acta Parasitologica

2012

tom 57

nr 2

Gyrodactylus malalai sp. nov. is described from the fin surface of cichlid fishes Oreochromis niloticus (L.) and Tilapia zillii (Gervais) caught in Lake Turkana (Kenya). The new species morphologically resembles Gyrodactylus nyanzae Paperna, 1973, but can be readily distinguished by the shape of the marginal hook sickles and the size of its hamuli. The sequence data of rDNA spanning partial 18S, internal transcribe spacer 1 and 2 and the 5.8S gene is unique within GenBank. Genetically, as most similar Gyrodactylus ergensi Přikrylová, Matějusová, Musilová et Gelnar, 2009 was found (97.5%). Moreover, a specimen of G. cichlidarum from O. niloticus, and a specimen G. ergensi from Sarotherodon galilaeus (L.) were collected during sampling in Kenya. Likewise, additional sampling of O. niloticus from the Blue Nile in Sudan revealed the presence of the newly described species. These findings represent the first records of gyrodactylids in both African countries.

Onchocleidus principalis (Monogenea: Ancyrocephalidae) co-introduced to Europe with centrarchid fish

61%

Ondrackova M. , Pravdova M. , Seifertova M. , Prikrylova I. , Kvach Y. , Ribeiro F.

Acta Parasitologica

2020

tom 65

nr 4