Brasergasilus bifurcatus sp.nov. [Copepoda, Ergasilidae, Abergasilinae] from the gills and nasal fossae of serrasalmid fishes from the Tres Marias Reservoir, Upper Sao Francisco River, Minas Gerais State, Brazil

• Autorzy: Santos M D , Thatcher V.E. , Brasil-Sato M.C.
• Języki publikacji: EN

Abstrakty

EN

Brasergasilus bifurcatus sp. nov. (Copepoda, Ergasilidae, Abergasilinae) is described. Specimens of the new species were collected from the gills and nasal fossae of the serrasalmid fishes, known as “piranhas”, Pygocentrus piraya (Cuvier, 1819) and “pirambebas”, Serrasalmus brandtii (Lütken, 1875). The fishes were netted in the Três Marias Reservoir (18°12′59″S, 45°17′34″W) of the upper São Francisco River, Minas Gerais State, Brazil. The new species differs from its congeners by the following characters: the specific setation on the antennule; the terminal barb of the antenna; the deeply bifurcate distal segment of the mandible; the chalice-shaped genital complex; a conspicuous external indentation of the second segment of the first endopod and a very short terminal segment of the first exopod.

Słowa kluczowe

EN

nasal fossa; fish; Tres Marias Reservoir; Sao Francisco River; Brazil; Copepoda; Minas Gerais State; Abergasilinae; Pygocentrus piraya; serrasalmid fish; gill; Brasergasilus bifurcatus; Ergasilidae; Serrasalmus brandti

• Wydawca: -
• Czasopismo: Acta Parasitologica
• Rocznik: 2007
• Tom: 52
• Numer: 3
• Opis fizyczny: p.268-272,fig.,ref.

Twórcy

autor

Santos M D

• Universidade Federal Rural do Rio de Janeiro, Km 7 da BR 465, CP 74539, Seropedica, RJ, 23851-970, Brazil

autor

Thatcher V.E.

autor

Brasil-Sato M.C.

Bibliografia

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• Malta J.C.O. 1995. Brasergasilus guaporensis sp. n. (Copepoda: Ergasilidae) das brânquias de Leporinus fasciatus (Bloch, 1890) (Characiformes: Anostomidae) da Amazônia Brasileira. Acta Amazonica, 23, 441–447.
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