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Trichodina haldari n. sp. and Paratrichodina bassonae n. sp. (Ciliophora: Peritrichida) from Indian Fresh Water Fishes

並列摘要


One new species of the genus Trichodina Ehrenberg, 1838 was obtained from the Churni River system of Nadia district and one new species of the genus Paratrichodina Lom, 1963 was obtained from the Ichamati river system of North 24 Parganas. These are T. haldari n. sp. from Glossogobius giuris (Hamilton-Buchanan) and P. bassonae n. sp. from Mystus cavasius (Hamilton-Buchanan). T. haldari n. sp. is characterized by large and dark central area, broad blade, robust central part, well developed and straight rays without any ray apophysis. P. bassonae n. sp. is unique in its class in having granular central area, crooked blades and delicate rays. This paper deals with taxonomic descriptions of the two new species based on Klein's dry silver nitrate technique along with prevalence and morphometric comparisons with closely related species.

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