Abstract
Three new and one previously described species of Bychowskyella Achmerow, 1952 were collected from the gills of four species of freshwater catfish in Peninsular Malaysia. They are Bychowskyella teysmanni n. sp. from Clarias teysmanni (Bleeker, 1857) (Clariidae), Bychowskyella sisoris n. sp. from Glyptothorax major (Boulenger, 1894) (Sisoridae), Bychowskyella baueri n. sp. from Silurichthys hasselti (Bleeker, 1858) (Siluridae), and Bychowskyella tchangi Gussev, 1976 from Clarias macrocephalus Gunther, 1864 (Clariidae). B. teysmanni n. sp. differs from B. tchangi in having two pairs of large marginal hooks. B. sisoris n. sp. is unique in possessing two onchia, while B. baueri n. sp. differs from previously described Bychowskyella species in the structure of the dorsal onchium. C. macrocephalus is a new host record for B. tchangi in Peninsular Malaysia.
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References
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Lim, L.H.S. Three new species of Bychowskyella Achmerow, 1952 (Monogenea) from Peninsular Malaysia. Syst Parasitol 19, 33–41 (1991). https://doi.org/10.1007/BF00010300
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DOI: https://doi.org/10.1007/BF00010300