Dactylogyrus kolodynensis sp. n. (Platyhelminthes: Monogenea) infecting gills of Osteobrama cotio (Hamilton, 1822) (Cypriniformes: Cyprinidae) from India

AbstractDactylogyrus kolodynensis, a new monogenean parasite species, is described fromOsteobrama cotio (Cyprinidae) collected from Lawngtlai (Mizoram) and Lucknow (Uttar Pradesh), India, using morphological examination and sequencing of partial 28S rRNA gene. The new species is morphologically characterized and distinguished from closely related congeners by a combination of the following characters: copulatory tube a loose coil of one complete clockwise ring, jaw-shaped accessory piece comprising variable sheathes enclosing and guiding the copulatory tube, and sclerotized vaginal tube, with a terminal flower-bud-shaped vaginal pore. The molecular analyses of specimens ofD.kolodynensis collected from two different localities using 28S rRNA gene showed identical genotype that did not match any of the known sequences in GenBank, confirming our initial morphological identification.Dactylogyrus cotius, a sympatric species on the gills ofO. cotio, is regarded as aspecies inquirenda because of its poor description. This is the first report of a monogenean species from Mizoram, in northeast India, bringing the total number ofDactylogyrus species in India to 57.
Source: Journal of Parasitic Diseases - Category: Parasitology Source Type: research