Acta Parasitologica

, Volume 60, Issue 2, pp 254–260 | Cite as

First data on the parasites of Hoplias aimara (Characiformes): description of two new species of gill monogeneans (Dactylogyridae)

  • Juliana Moreira
  • Tomáš Scholz
  • José Luis LuqueEmail author


The first data on the parasites of the giant trahira, Hoplias aimara (Characiformes: Erythrinidae), a little known, but popular fish for sport angling, are provided. In H. aimara from the Xingu River in Brazil, two new species of gill monogeneans of the family Dactylogyridae were found and their description is provided herein. Urocleidoides aimarai n. sp. differs from all 18 congeners by the presence of a large accessory piece of the male copulatory organ and based by morphology of anchors. Urocleidoides xinguensis n. sp. is distinguished by unique combination of copulatory complex and haptoral structures.


Monogenea Dactylogyridae Urocleidoides Erythrinidae Hoplias aimara Xingu River Brazil 


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  1. Cohen S.C., Justo M.C., Kohn A. (Eds.). 2013. South American Monogenoidea Parasites of Fishes, Amphibians and Reptiles. Oficina de Livros, Rio de Janeiro, 663 pp.Google Scholar
  2. Ergens R. 1969. The suitability of ammonium picrate-glycerin in preparing slides of lower Monogenoidea. Folia Parasitologica, 16, 320Google Scholar
  3. Froese R., Pauly D. (Eds.) FishBase. 2014. World Wide Web electronic publication. Available in: <>, version 06/2014. Accessed in: August 2014Google Scholar
  4. Graca R.J., Ueda B.H., Oda F.H., Takemoto R.M. 2013. Monogenea (Platyhelminthes) parasites from the gills of Hoplias aff. malabaricus (Bloch, 1794) (Pisces: Erythrinidae) in the Upper Parana River Floodplain, States of Parana and Mato Grosso do Sul, Brazil. Check List, 9, 1484–1487CrossRefGoogle Scholar
  5. Guidelli G., Tavechio W.L.G., Takemoto R.M., Pavanelli G.C. 2006. Fauna parasitaria de Leporinus lacustris e Leporinus friderici (Characiformes, Anostomidae) da planicie de inundacao do alto rio Parana, Brasil. Acta Scientiarum, Biological Sciences, 28, 281–290. DOI: 10.4025/actascibiolsci.v28i3.228Google Scholar
  6. Jogunoori W., Kritsky D.C., Venkatanarasaiah J. 2004. Neotropical Monogenoidea. 46. Three new species from the gills of introduced aquarium fishes in India, the proposal of Heterotylus n. g. and Diaphorocleidus n. g., and the reassignment of some previously described species of Urocleidoides Mizelle & Price, 1964 (Polyonchoinea: Dactylogyridae). Systematic Parasitology, 58, 115–124. DOI: 10.1023/B:SYPA.0000029422.16712.9aCrossRefGoogle Scholar
  7. Kritsky D.C., Thatcher V.E. 1974. Monogenetic trematodes (Monopisthocotylea: Dactylogyridae) from freshwater fishes of Colombia, South America. Journal of Helminthology, 48, 59–66. DOI: 10.1017/S0022149X00022604CrossRefGoogle Scholar
  8. Kritsky D.C., Thatcher V.E. 1983. Neotropical Monogenea. V: Five new species from the Aruana, Osteoglossum bicirrosum Vandelli, a freshwater teleost from Brazil, with the proposal of Gonocleithrum n. gen. (Dactylogyridae: Ancyrocephalinae). Proceedings of the Biological Society of Washington, 96, 581–597Google Scholar
  9. Kritsky D.C., Thatcher V.E., Boeger W.A. 1986. Neotropical Monogenea. 8. Revision of Urocleidoides (Dactylogyridae, Ancyrocephalinae). Proceedings of the Helminthological Society of Washington, 53, 1–37Google Scholar
  10. Martins M.L., Onaka E.M., Fenerick J. Jr. 2005. Larval Contracaecum sp. (Nematoda: Anisakidae) in Hoplias malabaricus and Hoplerythrinus unitaeniatus (Osteichthyes: Erythrinidae) of economic importance in occidental marshlands of Maranhao, Brazil. Veterinary Parasitology, 127, 51–59. DOI: 10.1016/j.vetpar.2004.09.026CrossRefGoogle Scholar
  11. Mendoza-Franco E.F., Aguirre-Macedo M.L., Vidal-Martinez V.M. 2007. New and previously described species of Dactylogyridae (Monogenoidea) from the gills of Panamanian freshwater fishes (Teleostei). Journal of Parasitology, 93, 761–771. DOI: 10.1645/GE-1068R.1CrossRefGoogle Scholar
  12. Mendoza-Franco E.F., Reina R.G. 2008. Five new species of Urocleidoides (Monogenoidea) (Mizelle and Price 1964) Kritsky, Thatcher and Boeger, 1986, parasitizing the gills of Panamanian freshwater fishes. Journal of Parasitology, 94, 793–802. DOI: 10.1645/GE-1438.1CrossRefGoogle Scholar
  13. Mendoza-Franco E.F., Reina R.G., Torchin M.E. 2009. Dactylogyrids (Monogenoidea) parasitizing the gills of Astyanax spp. (Characidae) from Panama and Southeast Mexico, a new species of Diaphorocleidus and a proposal for Characithecium n. gen. Journal of Parasitology, 95, 46–55. DOI: 10.1645/GE-1592.1CrossRefGoogle Scholar
  14. Mendoza-Franco E.F., Scholz T., Vivas-Rodriguez C., Vargas-Vazquez J. 1998. Monogeneans of freshwater fishes from cenotes (sinkholes) of the Yucatan Peninsula, Mexico. Folia Parasitologica, 46, 267–273Google Scholar
  15. Mendoza-Palmero C.A., Aguilar-Aguilar R. 2008. Record of Urocleidoides vaginoclaustrum Jogunoori, Kritsky and Venkatanarasaiah, 2004 (Monogenea: Dactylogyridae) from a freshwater fish in Mexico. Parasitology Research, 103, 1235–1236. DOI: 10.1007/s00436-008-1119-9CrossRefGoogle Scholar
  16. Mendoza-Palmero C.A., Scholz T. 2011. New species of Demidospermus (Monogenea: Dactylogyridae) of pimelodid catfish (Siluriformes) from Peruvian Amazonia and the reassignment of Urocleidoides lebedevi Kritsky and Thatcher, 1976. Journal of Parasitology, 97, 586–592. DOI: 10.1645/GE-2655.1CrossRefGoogle Scholar
  17. Miranda E.E., Miranda J.R., Santos E.P.F. 1988. Efeitos ecologicos das barragens do Xingu: uma avaliacao preliminar. In: (Eds. A. Leinad, O. Santos, and L.M.M. Andrade) As hidreletricas do Xingu e os povos indigenas. Comissao Pro-Indio de Sao Paulo, Sao Paulo, 196 pp.Google Scholar
  18. Mizelle J.D. 1936. New species of trematodes from the gills of Illinois fishes. American Midland Naturalist, 17, 785–806. DOI: 10.2307/2420687CrossRefGoogle Scholar
  19. Mizelle J.D., Kritsky D.C., Crane J.W. 1968. Studies on monogenetic trematodes. XXXVIII. Ancyrocephalinae from South America with proposal of Jainus gen. n. American Midland Naturalist, 80, 186–198. DOI: 10.2307/2423609CrossRefGoogle Scholar
  20. Mizelle J.D., Price C.E. 1963. Additional haptoral hooks in the genus Dactylogyrus. Journal of Parasitology, 49, 1028–1029CrossRefGoogle Scholar
  21. Mizelle J.D., Price C.E. 1964. Studies on monogenetic trematodes. XXVII. Dactylogyrid species with the proposal of Urocleidoides gen. n. Journal of Parasitology, 50, 579–584. DOI: 10.2307/3275625CrossRefGoogle Scholar
  22. Molnar K., Hanek G., Fernando C.H. 1974. Ancyrocephalids (Monogenea) from freshwater fishes of Trinidad. Journal of Parasitology, 60, 914–920. DOI: 10.2307/3278511CrossRefGoogle Scholar
  23. Oyakawa O.T., Mattox G.M.T. 2009. Revision of the Neotropical trahiras of the Hoplias lacerdae species-group (Ostariophysi: Characiformes: Erythrinidae) with descriptions of two new species. Neotropical Ichthyology, 7, 117–140. DOI: 10.1590/S1679-62252009000200001CrossRefGoogle Scholar
  24. Rocha C.A.M. 2011. Parasitic helminths of the freshwater Neotropical fish Hoplias malabaricus (Characiformes, Erythrinidae) from South America basins. Reviews in Fisheries Science, 19, 150–156. DOI: 10.1080/10641262.2011.557752CrossRefGoogle Scholar
  25. Rosim D.F., Mendonza-Franco E.F., Luque J.L. 2011. New and previously described species of Urocleidoides (Monogenoidea: Dactylogyridae) infecting the gills of Hoplias malabaricus (Characiformes: Erythrinidae) from Brazil. Journal of Parasitology, 97, 406–417. DOI: 10.1645/GE-2593.1CrossRefGoogle Scholar
  26. Santos G.M., Santos A.C.M. 2005. Sustentabilidade da pesca na Amazonia. Estudos Avançados, 19, 165–182. DOI: 10.1590/S0103-40142005000200010CrossRefGoogle Scholar
  27. Suriano D.M. 1997. The genus Urocleidoides Mizelle and Price, 1964 (Monogenea: Ancyrocephalidae) parasitizing Characoidei fishes in Argentina. Physis (Buenos Aires), Section B, 53, 1–6Google Scholar
  28. Takemoto R.M., Pavanelli G.C., Lizama M.A.P., Lacerda A.C.F., Yamada F.H., Moreira L.H.A., Creschini T.L., Bellay S. 2009. Diversity of parasites of fish from the Upper Parana River floodplain, Brazil. Brazilian Journal of Biology, 69, 691–705. DOI: 10.1590/S1519-69842009000300023CrossRefGoogle Scholar

Copyright information

© Witold Stefański Institute of Parasitology, Polish Academy of Sciences 2015

Authors and Affiliations

  • Juliana Moreira
    • 1
  • Tomáš Scholz
    • 2
  • José Luis Luque
    • 3
  1. 1.Curso de Pós-Graduação em Ciências Veterinárias da Universidade Federal Rural do Rio de JaneiroSeropédica, Rio de JaneiroBrazil
  2. 2.Institute of ParasitologyBiology Centre of the Academy of Sciences of the Czech RepublicČeské BudĕjoviceCzech Republic
  3. 3.Departamento de Parasitologia AnimalUniversidade Federal Rural do Rio de JaneiroSeropédica, Rio de JaneiroBrazil

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