Brevimulticaecum sp. (Nematoda: Heterocheilidae) larvae parasitic in freshwater fish in the Pantanal wetland, Brazil
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2010-09-20
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Vieira, K. R. I.
Vicentin, W.
Paiva, F.
Pozo, C. F.
Borges, F. A.
Adriano, E. A. [UNIFESP]
Costa, F. E. S.
Tavares, L. E. R.
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During the study of metazoan parasites of freshwater fish in the Pantanal wetland (state of Mato Grosso do Sul, Brazil), third-stage larvae of Brevimulticaecum sp. were collected from the abdominal cavity, liver parenchyma, mesentery, skeletal muscles and stomach wall of the following species: Gymnotus inaequilabiatus, Hemisorubim platyrhynchos, Hoplias aff. malabaricus, Myleus levis, Pseudoplatystoma corruscans, Pygocentrus nattereri, Serrasalmus marginatus and Sorubim lima. the larvae exhibited the main characteristics of the genus Brevimulticaecum, such as short ventricular appendices and the position of excretory pore and excretory nucleus. This is the first report and description of larval specimens of Brevimulticaecum parasitic in these hosts, which are fish species distributed throughout South America. (C) 2010 Elsevier B.V. All rights reserved.
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Veterinary Parasitology. Amsterdam: Elsevier B.V., v. 172, n. 3-4, p. 350-354, 2010.