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A new species of Trichodina Ehrenberg, 1830 (Ciliophora: Trichodinidae) from Rhamdia quelen (Siluriformes: Heptapteridae) and Gymnotus sp. (Teleostei: Gymnotidae) in Brazil
Gabriela S.O. Hashimoto , Natalia C. Marchiori , Santiago B. Pádua , Márcia M. Ishikawa , Juan R.E. Garcia and Maurício L. Martins
From the journal Acta Parasitologica
https://doi.org/10.1515/ap-2016-0099
The present study describes a new species of Trichodina found in the mucus of the body surface of 137 farmed and wild silver catfish (Rhamdia quelen) located in southern Brazil and in the gills of 99 banded knife fish (Gymnotus sp.) captured in the basin of Pantanal. Smears of the body surface mucus and gills were air dried at room temperature and impregnated with silver nitrate and stained with Giemsa for analysis of the adhesive disc, denticles and macronucleus. Characterized as a medium trichodinid, Trichodina quelenii n. sp. resembles T. heterodentata and T. acuta. It differs from T. heterodentata by the shape of the blade and from T. acuta by the lack of central circle. Furthermore, the distinct shape of the blade of T. quelenii n. sp. differs from all previously described species for the genus, leaving no doubt it is a new species.
Keywords: Silurid fish; gymnotid fish; parasitology; Trichodina; description; prevalence
The authors thank CNPq (National Council for Scientific and Technological Development) for financial support and research grant to M.L. Martins (305869-2014-0), to FUNDECT (Foundation Support to Education Development, Science and Technology State of Mato Grosso do Sul) (23/200.202/2010) and Dr. Ana C.F.L. Sakamoto (Federal University of Paraíba, PB, Brazil) for critical review of the manuscript prior to submission.
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Received: 2016-2-23
Revised: 2016-5-31
Accepted: 2016-6-15
Published in Print: 2016-12-1
© 2016 W. Stefański Institute of Parasitology, PAS
Hashimoto, Gabriela S.O., Marchiori, Natalia C., Pádua, Santiago B., Ishikawa, Márcia M., Garcia, Juan R.E. and Martins, Maurício L.. "A new species of Trichodina Ehrenberg, 1830 (Ciliophora: Trichodinidae) from Rhamdia quelen (Siluriformes: Heptapteridae) and Gymnotus sp. (Teleostei: Gymnotidae) in Brazil" Acta Parasitologica, vol. 61, no. 4, 2016, pp. 707-712. https://doi.org/10.1515/ap-2016-0099
Hashimoto, G., Marchiori, N., Pádua, S., Ishikawa, M., Garcia, J. & Martins, M. (2016). A new species of Trichodina Ehrenberg, 1830 (Ciliophora: Trichodinidae) from Rhamdia quelen (Siluriformes: Heptapteridae) and Gymnotus sp. (Teleostei: Gymnotidae) in Brazil. Acta Parasitologica, 61(4), 707-712. https://doi.org/10.1515/ap-2016-0099
Hashimoto, G., Marchiori, N., Pádua, S., Ishikawa, M., Garcia, J. and Martins, M. (2016) A new species of Trichodina Ehrenberg, 1830 (Ciliophora: Trichodinidae) from Rhamdia quelen (Siluriformes: Heptapteridae) and Gymnotus sp. (Teleostei: Gymnotidae) in Brazil. Acta Parasitologica, Vol. 61 (Issue 4), pp. 707-712. https://doi.org/10.1515/ap-2016-0099
Hashimoto, Gabriela S.O., Marchiori, Natalia C., Pádua, Santiago B., Ishikawa, Márcia M., Garcia, Juan R.E. and Martins, Maurício L.. "A new species of Trichodina Ehrenberg, 1830 (Ciliophora: Trichodinidae) from Rhamdia quelen (Siluriformes: Heptapteridae) and Gymnotus sp. (Teleostei: Gymnotidae) in Brazil" Acta Parasitologica 61, no. 4 (2016): 707-712. https://doi.org/10.1515/ap-2016-0099
Hashimoto G, Marchiori N, Pádua S, Ishikawa M, Garcia J, Martins M. A new species of Trichodina Ehrenberg, 1830 (Ciliophora: Trichodinidae) from Rhamdia quelen (Siluriformes: Heptapteridae) and Gymnotus sp. (Teleostei: Gymnotidae) in Brazil. Acta Parasitologica. 2016;61(4): 707-712. https://doi.org/10.1515/ap-2016-0099
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