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Gamidactylus piranhus sp. nov. (Copepoda, Vaigamidae) from the nasal fossae of serrasalmid fishes from the Três Marias Reservoir, Upper São Francisco River, Minas Gerais State, Brazil

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Abstract

Gamidactylus piranhus sp. nov. (Copepoda, Vaigamidae) from the nasal fossae of “San Francisco piranha”, Pygocentrus piraya (Cuvier, 1819) and.White piranha. Serrasalmus brandtii (Lütken, 1875) is described. The new species is similar to the type species of the genus, Gamidactylus jaraquensis Thatcher et Boeger, 1984, but differs from it in the following respects: the cephalothorax is shorter, the free thoracic segments are usually longer, leg 5 is reduced to a simple seta and a spine on the second antennal segment is lacking. Gamidactylus bryconis Varella, 1995 and Gamidactylus hoplius Varella et Malta, 1996, do not closely resemble the new species because they are much larger and both present leg 5 reduced to a double seta.

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Authors and Affiliations

  1. Departamento de Zoologia, Universidade Federal do Paraná, Caixa Postal 19020, 81531-980, Curitiba, PR, Brazil

    Vernon E. Thatcher

  2. Curso de Pós-Graduação em Ciências Veterinárias, Universidade Federal Rural do Rio de Janeiro, São Paul, Brazil

    Michelle D. Santos

  3. Departamento de Biologia Animal, UFRRJ, Km 7, Br 465, CP 74539, 23851-970, Seropédica, RJ, Brazil

    Marilia C. Brasil-Sato

Authors
  1. Vernon E. Thatcher
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  2. Michelle D. Santos
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  3. Marilia C. Brasil-Sato
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Correspondence to Michelle D. Santos.

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Thatcher, V.E., Santos, M.D. & Brasil-Sato, M.C. Gamidactylus piranhus sp. nov. (Copepoda, Vaigamidae) from the nasal fossae of serrasalmid fishes from the Três Marias Reservoir, Upper São Francisco River, Minas Gerais State, Brazil. Acta Parasit. 53, 284–288 (2008). https://doi.org/10.2478/s11686-008-0034-7

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  • DOI: https://doi.org/10.2478/s11686-008-0034-7

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