Skip to content
Licensed Unlicensed Requires Authentication Published by De Gruyter October 18, 2018

A new species of Aphanoblastella Kritsky, Mendoza-Franco and Scholz, 2000 (Monogenea, Dactylogyridae) parasitic on heptapterid catfish (Siluriformes) in the Neotropical region

  • Fabio H. Yamada EMAIL logo , Aline A. Acosta , Priscilla de O. F. Yamada , Tomáš Scholz and Reinaldo J. da Silva
From the journal Acta Parasitologica


Aphanoblastella magna n. sp. is described from the gills of the heptapterid catfish Pimelodella avanhandavae Eigenmann, 1917 in southeastern Brazil (Paraná River Basin). This new species most closely resembles Aphanoblastella chagresii Mendoza-Franco, Aguirre-Macedo and Vidal-Martínez, 2007 described from a congeneric fish host in Panama, but can be distinguished by the shape of the accessory piece and shape and size of the ventral and dorsal bars. From the other species of the genus, A. magna n. sp. differs mainly in the shape of the male copulatory organ (MCO), which is sinuous, versus spirally coiled in other species of the genus, except for A. travassosi (Price, 1938), and by the accessory piece which resembles a ‘shoehorn’. Aphanoblastella magna n. sp. is the seventh species of the genus and the first dactylogyrid described from P. avanhandavae. A partial 28S rDNA gene sequence of the new species is also provided; it forms a monophyletic clade with two congeners for which molecular data are available.


Two anonymous reviewers are acknowledged for providing helpful suggestions and critical remarks. We also thank the staff of the São Paulo Energy Company (CESP) for the facilities offered for the development of this work, the Institute of Parasitology, Biology Centre of the Czech Academy of Sciences in České Budějovice for hosting A.A.A. and providing the facilities to perform molecular analyses (supported by the Institute of Parasitology – RVO 60077344 and the Czech Science Foundation – P505/12/G112), and Philippe Vieira Alves for helping with molecular analyses. This work was supported by São Paulo Research Foundation (FAPESP) (grant numbers 2011/22603–3 and 2014/14298–4 to F.H.Y.; 2012/22895–7 and 2015/22382–8 to A.A.A.; 2013/25786–7 to P.O.F.Y.; and 2016/50377–1 to R.J.S.) and the National Council for Scientific and Technological Development (CNPq) (grant numbers 309125/2017-0 and 440496/2015–2 to R.J.S.).


Acosta A.A., Franceschini L.F., Zago A.C., Scholz, T., Silva R.J. 2017. Six new species of Heteropriapulus (Monogenea: Dactylogyridae) from South American fishes with an amended diagnosis to the genus. Zootaxa, 4290, 459–482. 10.11646/zootaxa.4290.3.3Search in Google Scholar

Acosta A.A., Scholz T., Blasco-Costa I., Alves P.V., Silva R.J. 2018. A new genus and two new species of dactylogyrid monogeneans from gills of Neotropical catfishes (Siluriformes: Doradidae and Loricariidae). Parasitology International, 67, 4–12. 10.1016/j.parint.2017.09.012Search in Google Scholar PubMed

Agostinho A.A., Vazzoler A.E.A.M., Thomaz S.M. 1995. The high River Paraná basin: limnological and ichthyological aspects. In: (Eds J.G. Tundisi, C.E.M. Bicudo and T. Matsumura-Tundisi) Limnology in Brazil. Brazilian Academy of Sciences/Brazilian Limnological Society, Rio de Janeiro, Brazil, pp. 59–103Search in Google Scholar

Azevedo R.K., Abdallah V.D., Luque J.L. 2010. Acanthocephala, Annelida, Arthropoda, Myxozoa, Nematoda and Platyhelminthes parasites of fishes from the Guandu River, Rio de Janeiro, Brazil. Check List, 6, 659–667. 10.15560/6.4.659Search in Google Scholar

Carvalho A.R., Tavares L.E.R., Luque J.L. 2009. A new species of Aphanoblastella (Monogenea: Dactylogyridae) parasitic on Rhamdia quelen (Siluriformes: Heptapteridae) from southeastern Brazil. Acta Scientiarum Biological Science, 31, 323– 325. 10.4025/actascibiolsci.v31i3.4917Search in Google Scholar

Cohen S.C., Justo M.C.N., Kohn A. (Eds.). 2013. South American Monogenoidea Parasites of Fishes, Amphibians and Reptiles. Fundação Oswaldo Cruz – FIOCRUZ and Conselho Nacional de Desenvolvimento Científico e Tecnológico – CNPq, Oficina de Livros, Rio de Janeiro, pp. 663Search in Google Scholar

Darriba D., Taboada G.L., Doallo R., Posada D. 2012. jModelTest 2: more models, new heuristics and parallel computing. Nature Methods, 9, 772. 10.1038/nmeth.2109.Search in Google Scholar

Eiras J.C., Takemoto R.M., Pavanelli G.C., Adriano E.A. 2011. About the biodiversity of parasites of freshwater fish from Brazil. Bulletin of the European Association of Fish Pathologists, 31, 161–168Search in Google Scholar

Ergens R. 1969. The suitability of ammonium picrate-glycerin in preparing slides of lower Monogenoidea. Folia Parasitologica, 16, 320Search in Google Scholar

Ferrari-Hoeinghaus A.P., Takemoto R.M., Oliveira L.C., Makrakis M.C., Baumgartner, G. 2006. Host-parasite relationships of monogeneans in gills of Astyanax altiparanae and Rhamdia quelen of the São Francisco Verdadeiro River, Brazil. Parasite, 13, 315–320. 10.1051/parasite/2006134315Search in Google Scholar PubMed

Franceschini L., Zago A.C., Müller M.I., Francisco C.J., Takemoto R.M., Silva R.J. 2018 Morphology and molecular characterization of Demidospermus spirophallus n. sp., D. prolixus n. sp. (Monogenea: Dactylogyridae) and a redescription of D. anus in siluriform catfish from Brazil. Journal of Helminthology, 92, 228–243. 10.1017/S0022149X17000256Search in Google Scholar PubMed

Guindon S., Gascuel O. 2003. A simple, fast, and accurate algorithm to estimate large phylogenies by maximum likelihood. Systematic Biology, 52, 696–704.10.1080/10635150390235520Search in Google Scholar PubMed

Gusev A.V. 1985. Monogenea. In: (Ed. O.N. Bauer) Key to parasites of the freshwater fish fauna of the USSR. Leningrad, USSR: Nauka Publications, pp. 424Search in Google Scholar

Kearse M., Moir R., Wilson A., Stones-Havas S., Cheung M., Sturrock S., Buxton S., Cooper A., Markowitz S., Duran C., Thierer T., Ashton B., Mentjies P., Drummond A. 2012. Geneious Basic: an integrated and extendable desktop software platform for the organization and analysis of sequence data. Bioinformatics, 28 1647–1649. 10.1093/bioinformatics/bts199Search in Google Scholar PubMed PubMed Central

Kimura M. 1980. A simple method for estimating evolutionary rate of base substitutions through comparative studies of nucleotide sequences. Journal of Molecular Evolution, 16, 111– 12010.1007/BF01731581Search in Google Scholar PubMed

Kritsky D.C., Boeger W.A., Thatcher V.E. 1985. Neotropical Monogenea. 7. Parasites of pirarucu, Arapaima gigas (Cuvier), with descriptions of two new species and redescription of Dawestrema cycloancistrium Price and Nowlin, 1967 (Dactylogyridae: Ancyrocephalinae). Proceedings of the Biological Society of Washington, 98, 321–331Search in Google Scholar

Kritsky D.C., Mendoza-Franco E.F., Scholz, T. 2000. Neotropical Monogenoidea. 36. Dactylogyrids from the gills of Rhamdia guatemalensis (Siluriformes: Pimelodidae) from cenotes of the Yucatan Peninsula, Mexico, with proposal of Ameloblastella gen. n. and Aphanoblastella gen. n. (Dactylogyridae: Ancyrocephalinae). Comparative Parasitology, 67, 76–84Search in Google Scholar

Kritsky D.C., Thatcher V.E., Boeger W.A. 1986. Revision of Urocleidoides (Dactylogyridae, Ancyrocephalinae). Proceedings of the Helminthological Society of Washington, 53, 1–37Search in Google Scholar

Mendoza-Franco E.F., Aguirre-Macedo M.L., Vídal-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. 10.1645/GE-1068R.1Search in Google Scholar PubMed

Mendoza-Palmero C.A., Blasco-Costa I., Scholz, T. 2015. Molecular phylogeny of Neotropical monogeneans (Platyhelminthes: Monogenea) from catfishes (Siluriformes). Parasites and Vectors, 8, 164. 10.1186/s13071-015-0767-8Search in Google Scholar PubMed PubMed Central

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, 484–97. 10.1645/GE-2941.1Search in Google Scholar PubMed

Miller M.A., Pfeiffer W., Schwartz T. 2010. Creating the CIPRES Science Gateway for inference of large phylogenetic trees. SC10 Workshop on Gateway Computing Environments (GCE10), New Orleans, November 14, 1–8, 10.1145/2016741.2016785Search in Google Scholar

Mizelle J.D., Klucka A.R. 1953. Studies on monogenetic trematodes. XIV. Dactylogyridae from Wisconsin fishes. American Midland Naturalist, 49, 720–73310.2307/2485203Search in Google Scholar

Mizelle J.D., Kritsky D.C. 1969. Studies on monogenetic trematodes. XXXIX. Exotic species of Monopisthocotylea with the proposal of Archidiplectanum gen. n. and Longihaptor gen. n. American Midland Naturalist, 81, 370–38610.2307/2423977Search in Google Scholar

Molnar K., Hanek G., Fernando C.H. 1974. Ancyrocephalids (Monogenea) from freshwater fishes of Trinidad. Journal of Parasitology, 60, 914–92010.2307/3278511Search in Google Scholar

Ota R.R., Deprá G.C., Graça W.J., Pavanelli C.S. 2018. Peixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated. Neotropical Ichthyology, 16, e170094. 10.1590/1982-0224-20170094Search in Google Scholar

Pleijel F., Jondelius U., Norlinder E., Nygren A., Oxelman B., Schander C., Sundberg P., Thollesson M. 2008. Phylogenies without roots? A plea for the use of vouchers in molecular phylogenetic studies. Molecular Phylogenetics and Evolution, 48, 369–371. 10.1016/j.ympev.2008.03.024Search in Google Scholar PubMed

Rambaut A. 2009. Molecular evolution, phylogenetics and epidemiology: Fig-Tree. Available at: (http//tree. in Google Scholar

Řehulková, E., Mendlová, M., Šimková, A. 2013. Two new species of Cichlidogyrus (Monogenea: Dactylogyridae) parasitizing the gills of African cichlid fishes (Perciformes) from Senegal: morphometric and molecular characterization. Parasitology Research, 112, 1399–1410. 10.1007/s00436-013-3291-9Search in Google Scholar PubMed

Ronquist F., Teslenko M., Van Der Mark P., Ayres D.L., Darling A., Höhna S., Larget B., Liu L., Suchard M.A., Huelsenbeck J.P. 2012. MrBayes 3.2: efficient Bayesian phylogenetic inference and model choice across a large model space. Systematic Biology, 61, 539–542. 10.1093/sysbio/sys029Search in Google Scholar PubMed PubMed Central

Suriano D.M. 1986. El genero Urocleidoides Mizelle y Price, 1964 (Monogenea: Ancyrocephalidae). Anatomia y posicion sistemática. Urocleidoides mastigatus sp. nov. y U. travassosi (Price, 1934) Molnar, Hanek and Fernando, 1974, parasitas de Rhamdia sapo (Valenciennes, 1840) Eigenmann y Eigenmann, 1888 y Pimelodella laticeps Eigenmann, 1917 (Pisces: Siluriformes) de la laguna de Chascomus, Republica Argentina. Physis, 44, 73–80Search in Google Scholar

Takemoto R.M., Pavanelli G.C., Lizama M.A.P., Lacerda C.C.F., Yamada F.H., Moreira, L.H.A., Ceschini T.L., Bellay S. 2009. Diversity of parasites of fish from the Upper Paraná River floodplain, Brazil. Brazilian Journal of Biology, 69, 691–705. 10.1590/S1519-69842009000300023Search in Google Scholar

Tamura K., Stecher G., Peterson D., Filipski A., Kumar S. 2013. MEGA6: Molecular Evolutionary Genetics Analysis version 6.0. Molecular Biology and Evolution, 12, 2725–2729. 10.1093/molbev/mst197Search in Google Scholar PubMed PubMed Central

Thatcher, V. E. 2006. Amazon Fish Parasites. 2 ed. Bulgaria: Pensoft Publishers, pp. 509Search in Google Scholar

Wu X.Y., Zhu X.Q., Xie M.Q., Li A.X. 2006. The radiation of Haliotrema (Monogenea: Dactylogyridae: Ancyrocephalinae): molecular evidence and explanation inferred from LSU rDNA sequences. Parasitology, 132, 659–668. 10.1017/S003118200500956XSearch in Google Scholar PubMed

Yamada F.H., Brandão H., Yamada P.O.F., Silva, R.J. 2015. Philocorydoras longus sp. n. (Monogenea, Dactylogyridae) from the gills of Hoplosternum littorale (Siluriformes, Callichthyidae) in southeastern Brazil and the reassignment of two species from the genus Urocleidoides to Philocorydoras. Helminthologia, 52, 331–335. 10.1515/helmin-2015- 0052Search in Google Scholar

Yamada P.O.F., Yamada F.H., Silva R.J., Anjos L.A. 2017. A new species of Cosmetocleithrum (Monogenea, Dactylogyridae), a gill parasite of Trachelyopterus galeatus (Siluriformes, Auchenipteridae) from Brazil, with notes on the morphology of Cosmetocleithrum striatuli. Comparative Parasitology, 84, 119–123. 10.1654/1525-2647-84.2.119Search in Google Scholar

Received: 2018-03-01
Revised: 2018-07-25
Accepted: 2018-07-26
Published Online: 2018-10-18
Published in Print: 2018-12-19

© W. Stefański Institute of Parasitology, PAS

Downloaded on 11.12.2023 from
Scroll to top button