Abstract
Nematodes belonging to Spinitectus Fourment, 1883 (Nematoda: Cystidicolidae) were found in the intestine of Pimelodella avanhandavae Eigenmann (Siluriformes: Heptapteridae) from the Aguapeí River, Brazil. They represent a new species, Spinitectus aguapeiensis n. sp., which differs morphologically from its congeners in the body length, the number of spinose rings, the location of the excretory pore, the number of precloacal papillae and the length of the spicules. The new species is the first South American species within the genus with a remarkably spirally coiled posterior extremity in males and the largest spicules. It is also the second species with the highest number of precloacal papillae and has unique shape of the small spicule. Spinitectus aguapeiensis n. sp. is the first helminth species found in P. avanhandavae, the fourth species of this genus recorded in the River Paraná Basin and the sixth species of Spinitectus in South America.
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References
Anderson, R. C. (2000). Nematode Parasites of Vertebrates: Their Development and Transmission. 2nd ed. New York: CABI Publishing, 650 pp.
Bockmann, F. A., & Guazzelli, G. M. (2003). Family Heptapteridae (Heptapterids). In: Reis, R. E., Kullander, S. O. & Ferraris Jr. C. J. (Orgs.). Check List of the Freshwater Fishes of South and Central America. Porto Alegre: Edipucrs, pp. 406–431.
Britto, S. G. C. (2008). Peixes do Rio Paranapanema. 2nd ed. Duke Energy–Geração Paranapanema. São Paulo: Horizonte Geográfico, 120 pp.
Caspeta-Mandujano, J. M., Cabañas-Carranza, G., & Salgado-Maldonado, G. (2007). Spinitectus mariaisabelae n. sp. (Nematoda: Cystidicolidae) from the intestine of the freshwater fish Profundulus punctatus (Cyprinodontiformes) in Mexico. Helminthologia, 44, 103–106.
Caspeta-Mandujano, J. M., Moravec, F., & Salgado-Maldonado, G. (2000). Spinitectus mexicanus n. sp. (Nematoda: Cystidicolidae) from the intestine of the freshwater fish Heterandria bimaculata in Mexico. Journal of Parasitology, 86, 83–88.
Dazzani, B., Garcia, C., Peixoto, M., Trajano, E., & Almeida-Toledo, L. F. (2012). Cytogenetic and molecular analyses in troglobitic and epigean species of Pimelodella (Siluriformes: Heptapteridae) from Brazil. Neotropical Ichthyology, 10, 623–632.
Froese, R., & Pauly, D. (Eds) (2016). FishBase. World Wide Web electronic publication. http://www.fishbase.org/summary/Pimelodella-avanhandavae.html Accessed on 27 June, 2016.
ICZN (2012). International Commission on Zoological Nomenclature: Amendment of articles 8, 9, 10, 21 and 78 of the International Code of Zoological Nomenclature to expand and refine methods of publication. Zootaxa, 3450, 1–7.
Luque, J. L., Aguiar, J. C., Vieira, F. M., Gibson, D. I., & Santos, C. P. (2011). Checklist of Nematoda associated with the fishes of Brazil. Zootaxa, 3082, 1–88.
Moravec, F. (1979). Redescription of the nematode Spinitectus inermis parasitic in eels, Anguilla anguilla, of Europe. Acta Societatis Zoologicae Bohemoslovacae, 43, 35–42.
Moravec, F. (1998). Nematodes of Freshwater Fishes of the Neotropical Region. Prague: Academia, 464 pp.
Moravec, F., García-Magaña, L., & Salgado-Maldonado, G. (2002). Spinitectus tabascoensis sp. nov. (Nematoda, Cystidicolidae) from Ictalurus furcatus (Pisces) in southeastern Mexico. Acta Parasitologica, 47, 224–227.
Moravec, F., Salgado-Maldonado, G., & Caspeta-Mandujano, J. M. (2010). Spinitectus osorioi (Nematoda: Cystidicolidae) in the Mexican endemic fish Atherinella alvarezi (Atherinopsidae) from the Atlantic river drainage system in Chiapas, southern Mexico. Memórias do Instituto Oswaldo Cruz, 105, 52–56.
Moravec, F., Salgado-Maldonado, G., Caspeta-Mandujano, J. M., & González-Solís, D. (2009). Redescription of Spinitectus tabascoensis (Nematoda: Cystidicolidae) from fishes of the Lacandon rain forest in Chiapas, southern Mexico, with remarks on Spinitectus macrospinosus and S. osorioi. Folia Parasitologica, 56, 305–312.
Petter, A.-J. (1984). Nematodes de poissons du Paraguay II. Habronematoidea (Spirurida) Description de 4 espèces nouvelles de la famille des Cystidicolidae. Revue Suisse de Zoologie, 91, 935–952.
Petter, A.-J. (1987). Nématodes de poissons de l’Equateur. Revue Suisse de Zoologie, 94, 61–76.
Salgado-Maldonado, G. (2006). Checklist of helminth parasites of freshwater fishes from Mexico. Zootaxa, 1324, 1–357.
Salgado-Maldonado, G., Aguilar-Aguilar, R., Cabañas-Carranza, G., Soto-Galera, E., & Mendoza-Palmero, C. (2005). Helminth parasites in freshwater fish from the Papaloapan river basin, Mexico. Parasitology Research, 96, 69–89.
Travassos, L., Artigas, P., & Pereira, C. (1928). Fauna helminthologica dos peixes de água doce do Brasil. Archivos do Instituto Biológico de São Paulo, 1, 5–68.
Vaz, Z., & Pereira, C. (1934). Contribuição ao conhecimento dos nematoides de peixes fluviais do Brasil. Arquivos do Instituto Biológico de São Paulo, 5, 87–103.
Acknowledgements
The authors thank the Companhia Elétrica de São Paulo (CESP) for the logistical support during sampling. Thanks are also due to Tomáš Scholz for hosting AAA, František Moravec for help with nematode identification and the staff of the Laboratory of Electron Microscopy, all from the Institute of Parasitology, Biology Centre of the Czech Academy of Sciences in České Budějovice, as well as to Janneth Padilla Saldívar from El Colegio de la Frontera Sur for her help with illustrations.
Funding
This study was funded by Fundação de Amparo à Pesquisa do Estado de São Paulo – FAPESP (2012/22895–7, 2015/22382–8: AAA); Institute of Parasitology (RVO: 60077344: AAA); Czech Science Foundation (Project No. P505/12/G112: DGS; AAA); CNPq (PQ-2 – 307808/2014-9: RJS) and CNPq-PROTAX (440496/2015-2)/FAPESP 2016/50377-1: RJS).
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This article was registered in the Official Register of Zoological Nomenclature (ZooBank) as 3FF16301-85A1-41BB-AA88-C22EC4D44DB3. This article was published as an Online First article on the online publication date shown on this page. The article should be cited by using the doi number. This is the Version of Record.
This article is part of the Topical Collection Nematoda.
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Acosta, A.A., González-Solís, D. & da Silva, R.J. Spinitectus aguapeiensis n. sp. (Nematoda: Cystidicolidae) from Pimelodella avanhandavae Eigenmann (Siluriformes: Heptapteridae) in the River Aguapeí, Upper Paraná River Basin, Brazil. Syst Parasitol 94, 649–656 (2017). https://doi.org/10.1007/s11230-017-9729-1
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DOI: https://doi.org/10.1007/s11230-017-9729-1