Systematic Parasitology

, Volume 94, Issue 6, pp 649–656 | Cite as

Spinitectus aguapeiensis n. sp. (Nematoda: Cystidicolidae) from Pimelodella avanhandavae Eigenmann (Siluriformes: Heptapteridae) in the River Aguapeí, Upper Paraná River Basin, Brazil

  • Aline Angelina Acosta
  • David González-Solís
  • Reinaldo José da Silva


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.


Excretory Pore Posterior Extremity Anterior Extremity Helminth Species Helminthological Collection 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



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.


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).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All applicable institutional, national and international guidelines for the care and use of animals were followed.


  1. Anderson, R. C. (2000). Nematode Parasites of Vertebrates: Their Development and Transmission. 2nd ed. New York: CABI Publishing, 650 pp.CrossRefGoogle Scholar
  2. 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.Google Scholar
  3. Britto, S. G. C. (2008). Peixes do Rio Paranapanema. 2nd ed. Duke Energy–Geração Paranapanema. São Paulo: Horizonte Geográfico, 120 pp.Google Scholar
  4. 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.CrossRefGoogle Scholar
  5. 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.CrossRefPubMedGoogle Scholar
  6. 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.CrossRefGoogle Scholar
  7. Froese, R., & Pauly, D. (Eds) (2016). FishBase. World Wide Web electronic publication. Accessed on 27 June, 2016.
  8. 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.Google Scholar
  9. 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.Google Scholar
  10. Moravec, F. (1979). Redescription of the nematode Spinitectus inermis parasitic in eels, Anguilla anguilla, of Europe. Acta Societatis Zoologicae Bohemoslovacae, 43, 35–42.Google Scholar
  11. Moravec, F. (1998). Nematodes of Freshwater Fishes of the Neotropical Region. Prague: Academia, 464 pp.Google Scholar
  12. 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.Google Scholar
  13. 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.CrossRefPubMedGoogle Scholar
  14. 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.CrossRefPubMedGoogle Scholar
  15. 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.CrossRefGoogle Scholar
  16. Petter, A.-J. (1987). Nématodes de poissons de l’Equateur. Revue Suisse de Zoologie, 94, 61–76.CrossRefGoogle Scholar
  17. Salgado-Maldonado, G. (2006). Checklist of helminth parasites of freshwater fishes from Mexico. Zootaxa, 1324, 1–357.Google Scholar
  18. 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.CrossRefPubMedGoogle Scholar
  19. 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.Google Scholar
  20. 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.Google Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2017

Authors and Affiliations

  1. 1.Departamento de Parasitologia, Instituto de BiociênciasUniversidade Estadual Paulista (UNESP)BotucatuBrazil
  2. 2.El Colegio de la Frontera Sur (ECOSUR)ChetumalMexico
  3. 3.Institute of ParasitologyBiology Centre of the Czech Academy of SciencesČeské BudějoviceCzech Republic

Personalised recommendations