Acta Parasitologica

, Volume 59, Issue 1, pp 91–97 | Cite as

A new species of Unilatus (Platyhelminthes: Monogenoidea) from the gills of Leporacanthicus galaxias Isbrücker et Nijssen (Siluriformes: Loricariidae) from Brazil

  • Bárbara Branches
  • Marcus V. Domingues
Original Paper


Unilatus irae sp. nov. (Dactylogyridae) is described from the gills of the armored catfish, Leporacanthicus galaxias Isbrücker et Nijssen (Loricariidae: Ancistrinae), from Guamá river, Pará State, Brazil. The new species can be differentiated from its cogeneners by the combination of the following features: anterior anchor with well-developed superficial root, inconspicuous deep root, shaft bent at midpoint, forming angle of approximately 60°, evenly short curved point; posterior anchor with inconspicuous roots, sclerotized cap of base with small protuberance for articulation to posterior bar; evenly curved shaft and short point; anterior bar broadly V-shaped, with small posteromedial projection; and posterior bar anteriorly expanded on it midportion, with expanded ends slightly curved in posterior direction.


Monogenoidea Dactylogyridae Unilatus irae sp. nov. Siluriformes Leporacanthicus galaxias 


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  1. Armbruster J.W. 2011. Global Catfish Biodiversity. American Fisheries Society Symposium, 77, 15–37.Google Scholar
  2. Boeger W.A., Belmont-Jegú E. 1994. Neotropical Monogenoidea. 21. Trinigyrus mourei sp. n. (Dactylogyridae) from the gills of the Amazonian catfish Hypostomus marginatus (Loricariidae). Amazoniana, 13, 13–16.Google Scholar
  3. Bush A.O., Lafferty K.D., Lotz J.M., Shostak A.W. 1997. Parasitology meets ecology on its own terms: Margolis et al. Revisited. The Journal of Parasitology, 83, 575–583.PubMedCrossRefGoogle Scholar
  4. Ferrari-Hoeinghaus A.P., Bellay S., Takemoto R.M., Pavanelli G.C. 2010. 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. Acta Parasitologica, 55, 16–19. DOI: 10.2478/s11686-010-0007-5CrossRefGoogle Scholar
  5. Froese R., Pauly D. 2013. FishBase. World Wide Web electronic publication. Available from: (24 April 2013).Google Scholar
  6. Hanek G., Molnar K., Fernando C.H. 1974. Three new genera of Dactylogyridae (Monogenea) from freshwater fishes of Trinidad. Journal of Parasitology, 60, 911–913.PubMedCrossRefGoogle Scholar
  7. Harris P.D. 1983. The morphology and life cycle of the oviparous Oogyrodactylus farlowellae gen et sp. nov. (Monogenea, Gyrodactylidea). Parasitology, 87, 405–420.CrossRefGoogle Scholar
  8. Humason G.L. 1979. Animal Tissue Techniques. W.H. Freeman Co., San Francisco, USA. 661 pp.Google Scholar
  9. 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 and Price, 1964 (Polyonchoinea: Dactylogyridae). Systematic Parasitology, 58, 115–124.PubMedCrossRefGoogle Scholar
  10. Kohn A., Baptista-Farias M.F.D., Cohen S.C. 2000. Paranaella luquei gen. et sp. n. (Monogenea: Microcotylidae), a new parasite of Brazilian catfishes. Folia Parasitologica, 47, 279–283.PubMedCrossRefGoogle Scholar
  11. Kritsky D.C. 2007. Heteropriapulus nom. nov. (Monogenoidea: Dactylogyridae) for Heterotylus Jogunoori, Kritsky and Venkatanarasaiah, 2004, a junior homonym of Heterotylus Kirsch in Reitter, 1913 (Coleoptera: Curculionidae). Systematic Parasitology, 68, 233. DOI: 10.1007/s11230-007-9111-9.PubMedCrossRefGoogle Scholar
  12. Kritsky D.C., Boeger W.A. 1991. Neotropical Monogenea. 16. New species of oviparous Gyrodactylidea with proposal of Nothogyrodactylus gen. n. (Oogyrodactylidae) Journal of the Helminthological Society of Washington, 58, 7–15.Google Scholar
  13. Kritsky D.C., Boeger W.A., Thatcher V.E. 1986. Neotropical Monogenea. 9. Status of Trinigyrus Hanek, Molnar and Fernando, 1974 (Dactylogyridae) with descriptions of two new species from loricariid catfishes from the Brazilian Amazon. Proceedings Biological Society Washington, 99, 392–398.Google Scholar
  14. Kritsky D.C., Vianna R.T., Boeger W.A. 2007. Neotropical Monogenoidea. 50. Oviparous gyrodactylids from loricariid and pimelodid catfishes in Brazil, with the proposal of Phanerothecioides n. g., Onychogyrodactylus n. g. and Aglaiogyrodactylus n. g. (Polyonchoinea: Gyrodactylidea). Systematic Parasitology, 66, 1–34. DOI: 10.1007/s11230-006-9053-7.PubMedCrossRefGoogle Scholar
  15. Mendoza-Franco E.F., Caspeta-Mandujano J.M., Salgado-Maldonado G. 2012. Primer reporte de Heteropriapulus sp. (Platelmintos, Monogenoidea) infectando al pez diablo Pterygoplichthys pardalis (Siluriformes, Loricariidae) introducido en la cuenca del Rio Lacantún de la Reserva de la Biosfera Monte Azules, Chiapas, México. Jaina, 23, 1–6.Google Scholar
  16. Mendoza-Palmero C.A., Scholz T., Mendoza-Franco E.F., Kuchta R. 2012. New Species and Geographical Records of Dactylogyrids (Monogenea) of Catfish (Siluriformes) from the Peruvian Amazonia. Journal of Parasitology, 98, 484–497. DOI: 10.1645/GE-2941.1PubMedCrossRefGoogle Scholar
  17. Mizelle J.D., Klucka A.R. 1953. Studies on monogenetic trematodes. XVI. Dactylogyridae from Wisconsin fishes. American Midland Naturalist, 49, 720–733.CrossRefGoogle Scholar
  18. Mizelle J.D., Kritsky D.C. 1967. Unilatus gen. n., a unique Neotropical genus of Monogenea. Journal of Parasitology, 53, 1113–1114.PubMedCrossRefGoogle Scholar
  19. Mizelle J.D., Kritsky D.C., Crane J.W. 1968. Studies on Monogenetic Trematodes XXXVIII. Ancyrocephalinae from South America with the proposal of Jainus gen. n. American Midland Naturalist, 80, 186–198.CrossRefGoogle Scholar
  20. Molnar K., Hanek G., Fernando C.H. 1974. Ancyrocephalids (Monogenea) from freshwater fishes of Trinidad. Journal of Parasitology, 60, 914–920.PubMedCrossRefGoogle Scholar
  21. Nelson J.S. 2006. Fishes of the World. 4th. John Wiley and Sons, Inc. Hoboken, New Jersey, USA, 601 pp.Google Scholar
  22. Price CH.E. 1968. Diaccessorius, a new genus of Monogenea from the gills of an Amazon river teleost. Acta Biologica Venezuelica, 6, 84–89.Google Scholar
  23. Suriano D.M. 1983. Demidospermus anus gen. nov. sp. nov. (Monogenea: Ancyrocephalinae) parasita branquial de Loricaria (L) anus Valenciennes, 1840 (Pisces: Loricariidae) de la Laguna de Chascomus, Provincia de Buenos Aires, Republica Argentina. Neotropica, 29, 169–172.Google Scholar
  24. Suriano D.M. 1985. El genero Unilatus Mizelle y Kritsky, 1967. (Monogenea: Ancyrocephalidae) parasite de Siluriformes (Pisces: Loricariidae) del Rio Negro, Manaus, Brasil. Neotropica, 31, 163–175.Google Scholar
  25. Zica E.O.P., Abdallah V.D., De Azevedo R.K., Wunderlich A.C., Carvalho E.D., Silva R.J. 2012. Unilatus unilatus Mizelle and Kritsky, 1967 (Monogenea, Ancyrocephalinae) in Hyposto-mus spp. (Siluriformes, Loricariidae) from the Chavantes reservoir, São Paulo State, Brazil. Helminthologia, 49, 87–91.CrossRefGoogle Scholar

Copyright information

© Versita Warsaw and Springer-Verlag Wien 2014

Authors and Affiliations

  1. 1.Laboratório de Sistemática e CoevoluçãoUniversidade Federal do Pará, Campus Universitário de Bragança, Instituto de Estudos Costeiros; Travessa Leandro RibeiroBragança, ParáBrazil

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