Parasitology Research

, Volume 105, Issue 4, pp 1047–1052 | Cite as

Mexiconema africanum sp. n. (Nematoda: Daniconematidae) from the catfish Auchenoglanis occidentalis from Lake Turkana, Kenya

  • František MoravecEmail author
  • Miloslav Jirků
  • Harrison Charo-Karisa
  • Šárka Mašová
Original Paper


A new species of dracunculoid nematode, Mexiconema africanum sp. n. (Daniconematidae), is described from the abdominal cavity and the intestine (rarely also the gall bladder) of the catfish Auchenoglanis occidentalis (Valenciennes) (Claroteidae, Siluriformes) from Lake Turkana, Kenya. The new species differs from two other congeners mainly in the absence of two large cell nuclei in the glandular oesophagus, presence of well-developed lateral cephalic elevations, more numerous (14) cephalic papillae and a much longer body of the gravid female (18–22 mm); from Mexiconema cichlasomae Moravec, Vidal and Salgado Maldonado, 1992 also in less numerous (two) caudal processes and a different arrangement of genital papillae in the male. M. africanum is the first representative of the dracunculoid family Daniconematidae described from Africa.


Intermediate Host Gravid Female Caudal Process Cephalic Papilla Genital Papilla 
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.



Our thanks are due to the Laboratory of Electron Microscopy, Institute of Parasitology, Biology Centre of the ASCR, České Budějovice for technical assistance and to Irena Husáková and Blanka Škoríková, Department of Helminthology at the same Institute for help with illustrations. Special thanks go to Mikuláš Oros, Department of Helminthology, Institute of Parasitology, BC ASCR and Radim Blažek, Department of Botany and Zoology, Masaryk University, Brno, Czech Republic for their great help in the field. This study was supported by the grant KJB600960813 from the Grant Agency of the Academy of Sciences of the Czech Republic and research projects of the Institute of Parasitology, ASCR (Z60220518 and LC522), partly also by the Long-Term Research Plan MSM 0021622416 (funded by the Ministry of Education, Youth and Sports of the Czech Republic).


  1. Field DW, Eversole AG (1982) Parasite levels of stocked glass eel and elver stages of American eel. J World Maricul Soc 13:268–273Google Scholar
  2. Froese R, Pauly D (Eds) (2009) FishBase. World Wide Web electronic publication,, 3/2009
  3. Khalil LF, Polling L (1997) Check list of the helminth parasites of African freshwater fishes. University of the North, PietersburgGoogle Scholar
  4. Køie M (1988) Parasites in eels, Anguilla anguilla (L.), from eutrophic Lake Esrum (Denmark). Acta Parasitol Polon 33:89–100Google Scholar
  5. Marcogliese DJ, Cone DK (1993) What metazoan parasites tell us about evolution of American and European eels. Evolution 47:1632–1635CrossRefGoogle Scholar
  6. Marcogliese DJ, Cone DK (1996) On the distribution and abundance of the eel parasites in Nova Scotia: influence of pH. J Parasitol 82:389–399PubMedCrossRefGoogle Scholar
  7. Molnár K, Moravec F (1994) Third-stage larvae of Daniconema anguillae (Nematoda: Dracunculoidea) in the subcutaneous tissue of eel Anguilla anguilla. Folia Parasitol 41:215–219PubMedGoogle Scholar
  8. Moravec F (2006) Dracunculoid and anguillicoloid nematodes parasitic in vertebrates. Academia, PragueGoogle Scholar
  9. Moravec F, Køie M (1987) Daniconema anguillae gen. et sp. n., a new nematode of a new family Daniconematidae fam. n. parasitic in European eels. Folia Parasitol 34:335–340PubMedGoogle Scholar
  10. Moravec F, Nagasawa K (1998) Helminth parasites of the rare endemic catfish, Liobagrus reini, in Japan. Folia Parasitol 45:283–294PubMedGoogle Scholar
  11. Moravec F, Shimazu T (2008) Redescription of the female of Mexiconema liobagri (Nematoda: Daniconematidae), a little-known parasite of the rare endemic catfish Liobagrus reinii (Amblycipitidae), in Japan. Helminthologia 45:106–108CrossRefGoogle Scholar
  12. Moravec F, Vidal V, Salgado Maldonado G (1992) Mexiconema cichlasomae gen. et sp. n. (Nematoda: Daniconematidae) from Cichlasoma spp. (Pisces) from Mexico. Folia Parasitol 39:33–40Google Scholar
  13. Moravec F, Prouza A, Royero R (1996) Guyanema longispiculum sp. n. (Nematoda: Dracunculoidea) from Loricariichthys brunneus (Pisces) in Venezuela. Folia Parasitol 43:227–231PubMedGoogle Scholar
  14. Moravec F, Prouza A, Royero R (1997) Some nematodes of freshwater fishes in Venezuela. Folia Parasitol 44:33–47PubMedGoogle Scholar
  15. Moravec F, Jiménez-García MI, Salgado-Maldonado G (1998) New observations on Mexiconema cichlasomae (Nematoda: Dracunculoidea) from fishes in Mexico. Parasite 5:289–293PubMedGoogle Scholar
  16. Moravec F, Vidal-Martínez VM, Aguirre-Macedo ML (1999) Branchiurids (Argulus) as intermediate hosts of the daniconematid nematode Mexiconema cichlasomae. Folia Parasitol 46:79Google Scholar
  17. Moravec F, Spangenberg JV, Frasca S (2001) Syngnathinema californiense n. gen., n. sp. (Nematoda: Dracunculoidea) from the circulatory system of the bay pipefish Syngnathus leptorhynchus in California. J Parasitol 87:1429–1432PubMedGoogle Scholar
  18. Moravec F, Charo-Karisa H, Jirků M (2009) Philometrids (Nematoda: Philometridae) from fishes of Lake Turkana, Kenya, including two new species of Philometra and erection of Afrophilometra gen. n. Folia Parasitol 56:41–54PubMedGoogle Scholar
  19. Petter A-J (1974) Deux nouvelles espèces de Nématodes Camallanina parasites de Hoplerythrinus unitaeniatus (Characidae, Cypriniformes) en Guyane; création d’une nouvelle famille: les Guyanemidae (Dracunculoidea). Bull Mus Nat Hist Nat Zool 156(3e sér, no 232):803–812Google Scholar
  20. Petter A-J (1987) Nématodes de Poissons de l’Equateur. Rev Suisse Zool 94:61–76Google Scholar
  21. Petter A-J, Dlouhy C (1985) Nématodes de Poissons du Paraguay. III. Camallanina. Description d’une espèce et d’une sous-espèce nouvelles de la famille des Guyanemidae. Rev Suisse Zool 92:165–175Google Scholar
  22. Sokolov SG, Kazakov BE, Tseitlin DG (2006) The finding of the nematode Daniconema anguillae Moravec et Køie, 1987 (Spirurida, Dracunculoidea: Daniconematidae) in Lithuania. Helminthologia 43:57–58CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • František Moravec
    • 1
    Email author
  • Miloslav Jirků
    • 1
  • Harrison Charo-Karisa
    • 2
  • Šárka Mašová
    • 3
  1. 1.Institute of Parasitology, Biology CentreAcademy of Sciences of the Czech RepublicČeské BudějoviceCzech Republic
  2. 2.Kenya Marine and Fisheries Research InstituteSangoro Research CentrePap-OnditiKenya
  3. 3.Institute of Botany and Zoology, Faculty of ScienceMasaryk UniversityBrnoCzech Republic

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