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Three New Species of Trichodina (Protozoa: Ciliophora) Isolated from Ornamental Fish, Carassius auratus from India

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Abstract

Surveys on the protozoan parasites of different ornamental fishes occurring in the farms of West Bengal, India during the year 2014–16 revealed that goldfish, Carassius auratus, was the most sensitive species for trichodinid infection. Three new species, namely, Trichodina indiana n. sp., Trichodina manjuae n. sp. and Trichodina vinodi n. sp. have been isolated and identified on the basis of dry silver nitrate impregnation technique followed by taxonomic description, morphometric variability and comparative data with its closely related species. T. indiana n. sp. has been uniquely characterized by their prominent denticular ring contains less angular acute denticle along with the large number of globular granules at the center of adhesive disc. Another two species T. manjuae n. sp. and T. vinodi n. sp. also described as new species, on the basis of their broad blade with extended well developed rays and sickle shaped, sharp denticle along with less prominent short rays respectively. The present study confirms the first report of this genus from Carassius auratus in India and added three more species under the genus along with new host, locality records and prevalence rates.

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Acknowledgement

One of the authors (MS) is thankful to the University Grants Commission, New Delhi for financial support under Special Assistance Program No.F-3-11/2012 (SAP-II). Thanks are due to Officer In Charge, Protozology Section, Zoological Survey of India, Kolkata for providing the accession number of type specimen.

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  1. Parasitology Laboratory, Department of Zoology, University of Kalyani, Kalyani, West Bengal, 741235, India

    Mandira Saha & P. K. Bandyopadhyay

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  1. Mandira Saha
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  2. P. K. Bandyopadhyay
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Correspondence to P. K. Bandyopadhyay.

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Saha, M., Bandyopadhyay, P.K. Three New Species of Trichodina (Protozoa: Ciliophora) Isolated from Ornamental Fish, Carassius auratus from India. Proc Zool Soc 72, 79–89 (2019). https://doi.org/10.1007/s12595-017-0228-9

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  • DOI: https://doi.org/10.1007/s12595-017-0228-9

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