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New Species and Records of Anacanthorus (Monogenea: Dactylogyridae) Parasitizing Serrasalmid Fish (Characiformes) from Brazil, Including Molecular Data

  • Juliana Moreira
  • Jânio da Silva Carneiro
  • Emil J. H. Ruz
  • José L. LuqueEmail author
Original Paper

Abstract

Introduction

Species of the genus Anacanthorus Mizelle & Price, 1965 represent commonly known parasites of Neotropical Characiformes. Anacanthorus is one of the most specious Neotropical monogenean genus, currently comprising 73 nominal species.

Materials and methods

Fish were obtained from the Miranda River, Mato Grosso do Sul, from the Xingu River, Pará, from the Mogi Guaçu River, São Paulo and from the Upper Parana River, Paraná, Brazil. The monogeneans found were examined in a light microscope and partial sequences of the mitochondrial cytochrome c oxidase 1 gene were obtained for most species.

Results

Two new species of Anacanthorus were retrieved from Brazilian serrasalmids and are described herein. Anacanthorus paraxaniophallus n. sp. from Serrasalmus maculatus Kner has great similarity to A. xaniophallus Kritsky et al. (J Helminthol Soc Wash 59:25–51, 1992) by the general morphology of the copulatory complex, but it can be easily differentiated by a larger accessory piece with a slightly curved point, by having a basal flap in the male copulatory organ and by the morphology of hooks, with flattened thumb. Anacanthorus myleusi n. sp. from Myloplus schomburgkii (Jardine) is mainly distinguished by its unique copulatory complex, possessing an inverted J-shaped MCO with terminal flare and a hook-shaped accessory piece. Additionally, new host records are provided to A. lepyrophallus, geographical records are provided to four species of Anacanthorus (A. lepyrophallus, A. maltai, A. sciponophallus and A. thatcheri), which are being recorded in the Paraná River basin for the first time, and we also provide molecular data for six species of Anacanthorus.

Keywords

Monogeneans Anacanthorinae Serrasalmidae Mitochondrial DNA Brazil 

Notes

Acknowledgements

We wish to thank Camila Pantoja, Maria Catarina Moraes and Philippe Alves from the Universidade Federal Rural do Rio de Janeiro, Rio de Janeiro (Brazil) and Tomáš Scholz from the Institute of Parasitology, České Budějovice (Czech Republic) for their help with material collection and parasitological examination. Thanks are also due to Luiz Eduardo Roland Tavares from the Universidade Federal do Mato Grosso do Sul, Campo Grande (Brazil) for providing the facilities during the field trip. We would like also to thank Dr. Douglas McIntosh from the Department of Animal Parasitology, UFRRJ for technical support on sample sequencing. JM was funded by a Doctoral fellowship from CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Brazil), and Conselho Nacional de Desenvolvimento Cientifico e Tecnológico (CNPq) grants to JLL (Nos. 474077/2011-0, 304254/2011-8, 402665/2012-0).

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Copyright information

© Witold Stefański Institute of Parasitology, Polish Academy of Sciences 2019

Authors and Affiliations

  1. 1.Programa de Pós-Graduação em Biologia Animal da Universidade Federal Rural do Rio de JaneiroSeropédicaBrazil
  2. 2.Programa de Pós-Graduação em Biodiversidade e Conservação, Faculdade de Ciências Biológicas, Campus Universitário de AltamiraUniversidade Federal do ParáAltamiraBrazil
  3. 3.Laboratório de Zoologia, Faculdade de Ciências Biológicas, Campus Universitário de AltamiraUniversidade Federal do ParáAltamiraBrazil
  4. 4.Departamento de Parasitologia AnimalUniversidade Federal Rural do Rio de JaneiroSeropédicaBrazil

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