Acta Parasitologica

, Volume 55, Issue 1, pp 16–19 | Cite as

A new species of Demidospermus Suriano, 1983 (Monogenea, Dactylogyridae) parasitic on Loricariichthys platymetopon Isbrücker et Nijssen (Loricariidae, Siluriformes) from the Upper Paraná River floodplain, Brazil

  • Ana P. Ferrari-Hoeinghaus
  • Sybelle Bellay
  • Ricardo M. Takemoto
  • Gilberto C. Pavanelli
Article

Abstract

Demidospermus paranaensis sp. nov. is described from the gills of Loricariichthys platymetopon Isbrücker et Nijssen (Loricariidae, Siluriformes) from the Upper Paraná River floodplain, Brazil. This new species differs from other members of Demidospermus in the following features: tegument with annulations throughout trunk and peduncle, eyes absent, longer male copulatory organ (MCO) with ovate base. Demidospermus paranaensis sp. nov. is similar to its congenerics by having tandem gonads, a counterclockwise-coiled MCO, non-articulated groove-like accessory piece serving as a MCO guide, sinistral vaginal aperture, and V-shaped haptoral bars.

Keywords

Monogenea Dactylogyridae Demidospermus paranaensis sp. nov. Loricariidae Loricariichthys platymetopon Brazil 

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Copyright information

© © Versita Warsaw and Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Ana P. Ferrari-Hoeinghaus
    • 1
  • Sybelle Bellay
    • 1
  • Ricardo M. Takemoto
    • 1
  • Gilberto C. Pavanelli
    • 1
  1. 1.Pós-graduação em Ecologia de Ambientes Aquáticos Continentais (PEA), Laboratório de Ictioparasitologia, Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (Nupélia)Universidade Estadual de MaringáMaringáBrasil

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