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New species of Tereancistrum Kritsky, Thatcher & Kayton, 1980 (Monogenea: Dactylogyridae: Ancyrocephalinae) from the gills of Prochilodus lineatus (Osteichthyes: Prochilodontidae) from the upper Paraná River floodplain, Brazil

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Abstract

Two new species of Tereancistrum Kritsky, Thatcher & Kayton, 1980 are described from the gills of Prochilodus lineatus (Prochilodontidae) collected from the upper Paraná River floodplain, Brazil. T. toksonum n. sp. is characterised by a slim ventral bar with a sclerotised membrane along the anterior margin. Another characteristic is the dorsal anchor with an elongated deep root. T. curimba n. sp. is similar to T. ornatus Kritsky, Thatcher & Kayton, 1980 but possesses a sclerotised structure between the accessory sclerites of the ventral anchors. Moreover, the accessory anchor sclerites of this new species are longer than those described for T. ornatus.

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Authors and Affiliations

  1. Postgraduate Course in Ecology of Continental Aquatic Environments (PEA), State University of Maringá, Bloco G-90, Av. Colombo, 5790, 87020-900, Maringá, PR, Brazil

    Maria de los Angeles P. Lizama & Gilberto C. Pavanelli

  2. Nupélia (Nucleus of Research in Limnology, Ichthyology and Aquaculture), State University of Maringá, Bloco G-90, Av. Colombo, 5790, 87020-900, Maringá, PR, Brazil

    Ricardo M. Takemoto & Gilberto C. Pavanelli

Authors
  1. Maria de los Angeles P. Lizama
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  2. Ricardo M. Takemoto
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  3. Gilberto C. Pavanelli
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Lizama, M.d.P., Takemoto, R.M. & Pavanelli, G.C. New species of Tereancistrum Kritsky, Thatcher & Kayton, 1980 (Monogenea: Dactylogyridae: Ancyrocephalinae) from the gills of Prochilodus lineatus (Osteichthyes: Prochilodontidae) from the upper Paraná River floodplain, Brazil. Syst Parasitol 57, 45–49 (2004). https://doi.org/10.1023/B:SYPA.0000010684.67784.6e

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  • DOI: https://doi.org/10.1023/B:SYPA.0000010684.67784.6e

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