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Polylekithum percai n. sp. (Trematoda: Allocreadiidae) from Percichthys trucha (Perciformes: Percichthydae) in Patagonia, Argentina, and a redescription of Homalometron papilliferum (Szidat, 1956) n. comb.

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Abstract

Two species of Digenea are recorded from the intestine of Percichthys trucha (Percichthydae) from Patagonian water bodies. Polylekithum percai n. sp. (Allocreadiidae) is distinguished by its body size, the relative size of the suckers, the anterior extension of the vitelline fields, the number of eggs in the uterus and the different species of fish host from the two previously described species of Polylekithum. Homalometron (= Austrocreadium) papilliferum (Szidat, 1956) n. comb. is redescribed. Due to its spined tegument and the absence of a cirrus-sac, this species is considered a member of the family Apocreadiidae.

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Authors and Affiliations

  1. Departmento de Ciencias Biológicas, Universidad de Buenos Aires, Ciudad Universitaria, Pabellon II, 1428, Buenos Aires, Argentina

    Margarita Ostrowski de Nuñez

  2. Centro Regional Universitario Bariloche, Unidad Postal Universidad, 8400, Bariloche, Rio Negro, Argentina

    Norma Brugni & Gustavo Viozzi

Authors
  1. Margarita Ostrowski de Nuñez
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  2. Norma Brugni
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  3. Gustavo Viozzi
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Ostrowski de Nuñez, M., Brugni, N. & Viozzi, G. Polylekithum percai n. sp. (Trematoda: Allocreadiidae) from Percichthys trucha (Perciformes: Percichthydae) in Patagonia, Argentina, and a redescription of Homalometron papilliferum (Szidat, 1956) n. comb.. Syst Parasitol 47, 51–57 (2000). https://doi.org/10.1023/A:1006497331377

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