Summary
A new species of ascaridoid nematode, Hysterothylacium anguillae sp. n. (family Anisakidae), is described based on specimens recovered from the stomach and intestine of the giant mottled eel Anguilla marmorata Quoy et Gaimard from the Mngazi River, South Africa, collected in March–April 2011. It is characterized mainly by poorly developed lateral alae, a very short intestinal caecum and a long ventricular appendix, spicules 1.11–2.14 mm long (representing 5.2–5.8 % of body length), number of caudal papillae (19–21 pairs of preanals, 2 adanals and 5 postanals), presence of a median precloacal papilla (= ventromedian organ), tail tips of both sexes covered by minute spines, and by the shape and structure of lips. This is the first nominal species of Hysterothylacium described from an African freshwater fish and the second species of this genus reported from freshwater eels of the family Anguillidae. The following Indian congeneric species are considered species inquirendae: Hysterothalacium aetobathum Lakshmi, 2005, H. carutti Lakshmi, Rao et Shyamasundari, 1993, H. channai Lakshmi, 1995, H. fossillii Lakshmi, 1996, H. japonicum Rajialakshmi, 1996, H. kiranii Lakshmi, 1993, H. longicaecum Lakshmi, Rao et Shyamansundari, 1993, H. narayensis Lakshmi, 1997, H. nellorensis Lakshmi, 1996, H. neocornutum Rajialakshmi, Rao et Shyamasundari, 1992 and H. punctati Lakshmi, 1995. Of them, H. japonicum and H. neocornutum are transferred to Iheringascaris Pereira, 1935 as I. japonica (Rajialakshmi, 1996) comb. n. and I. neocornuta (Rajialakshmi, Rao et Shyamasundari, 1992) comb. n.
Similar content being viewed by others
References
Bruce, N. L. (1990): Redescription of the ascaridoid nematode Hysterothylacium scomberomori (Yamaguti) from Australian Spanish mackerel Scomberomorus commerson (Lacepède). Mem. Queensl. Mus., 28: 427–434
Bruce, N. L., Adlard, R. D., Cannon, L. R. G. (1994): Synoptic checklist of ascaridoid parasites (Nematoda) from fish hosts. Inver. Taxon., 8: 583–674
Deardorff, T. L., Overstreet, R. M. (1978): Thynnascaris rhacodes sp. n. (Nematoda: Ascaridoidea) in fishes from the Israeli Mediterranean coast. Ann. Parasitol., 53: 519–525
Deardorff, T. L., Overstreet, R. M. (1980): Review of Hysterothylacium and Iheringascaris (both previously = Thynnascaris) (Nematoda: Anisakidae) from the northern Gulf of Mexico. Proc. Biol. Soc. Wash., 93: 1035–1079
Froese, R., Pauly, D. (Eds) (2011): FishBase. World Wide Web electronic publication, version 10/2011. http://www.fishbase.org
Hartwich, G. (1975): Schlauchwürmer, Nemathelminthes Rundoder Fadenwürmer, Nematoda parasitische Rundwürmer von Wirbeltieren I. Rhabditida und Ascaridida. Die Tierwelt Deutschlands 62. Jena, VEB Gustav Fischer Verlag, 256 pp.
Khalil, L. F., Polling, L. (1997): Check list of the helminth parasites of African freshwater fishes. Republic of South Africa, University of the North, 185 pp.
Lakshmi, R. I. (1993): Hysterothylacium kiranii n. sp. (Nematoda: Anisakidae) from the body cavity of Channa (Ophiocephalus) punctatus. Ind. J. Parasitol., 16: 83
Lakshmi, R. I. (1995a): Hysterothylacium channai n. sp. (Nematoda: Anisakidae) from the intestine of Channa punctatus (Bloch) from Kolleru lake (Andhra Pradesh). Riv. Parassitol., 12: 221–228
Lakshmi, R.I. (1995b): Hysterothylacium punctati sp. nov. (Nematoda: Anisakidae) from the stomach of the freshwater fish, Channa punctatus Bloch. Geobios New Rep., 14: 123–129
Lakshmi, R. I. (1996a): Description of new species of Hysterothylacium Ward and Magath, 1917 (Nematoda: Anisakidae) from the intestine of the freshwater catfish Heteropneustes fossilis (Bloch). Riv. Parassitol., 13: 169–176
Lakshmi, R. I. (1996b): Hysterothylacium nellorensis sp. nov. (Nematoda: Anisakidae) from freshwater fish, Labeo bogut (Sykes). Geobios New Rep., 15: 77–81
Lakshmi, R. I. (1997): Hysterothylacium narayanensis n. sp. (Nematoda: Anisakidae) from the body cavity of Barbus ticto (Günther). Uttar Pradesh Zool. Soc., 17: 151–155
Lakshmi, R. I., Rao, H. K., Shyamasundari, K. (1993a): Hysterothylacium carutti n. sp. (Nematoda: Anisakidae) from the marine fish Johnius carutta Bloch of Bay of Bengal, Visakhapatnam. Uttar Pradesh J. Zool., 13: 1–10
Lakshmi, R. I., Rao, H. K., Shyamasundari, K. (1993b): Hysterothylacium longicaecum n. sp. (Nematoda: Anisakidae) from the intestine and stomach of freshwater fishes of Visakhapatnam. J. Parasitol. Appl. Anim. Biol., 2: 1–5
Li, L., An, R., Zhang, L. (2007a): A new species of Hysterothylacium (Nematoda: Anisakidae) from marine fishes from Yellow Sea, China, with a key to the species of the genus Hysterothylacium. Zootaxa, 1614: 43–52
Li, L., Xu, Z., Zhang, L. (2007b): A new species of genus Hysterothylacium Ward et Magath, 1917 (Nematoda, Anisakidae) from Liparis tanakae (Scorpaeniformes, Liparidae) from the Yellow Sea, China. Acta Parasitol., 52: 371–375. DOI: 10.2478/s11686-007-0034-z
Li, L., Xu, Z., Zhang, L. (2008): Redescription of three species of Hysterothylacium (Nematoda: Anisakidae) from marine fishes from the Yellow Sea, China, with the synonymy of Hysterothylacium muraenesoxin (Luo, 1999). Zootaxa, 1878: 55–67
Moravec, F. (1994): Parasitic nematodes of freshwater fishes of Europe. Prague and Dordrecht, Boston, London, Academia and Kluwer Academic Publishers, 473 pp.
Moravec, F., Nagasawa, K. (1998): Hysterothylacium japonicum sp. n. (Nematoda: Anisakidae) from the rare marine fish Trachipterus ishikawai in Japan. Acta Parasitol. 43: 39–42
Mozgovoy, A. A. 1953: [Ascaridata of animals and man and diseases caused by them. Osnovy nematodologii 2.] Moscow, Publ. House of the USSR Acad. Sci., 616 pp. (In Russian.)
Obiekezie, A. I., Möller, H., Anders, K. (1988): Diseases of the African estuarine catfish Chrisichthys nigrodigitatus (Lacèpéde) from the Cross River Estuary. J. Fish Biol., 32: 207–221
Petter, A. J., Cabaret, J., Tcheprakoff, R. (1995): Ascaridoid nematodes of teleostean fishes from the eastern North Atlantic and seas of the north of Europe. Parasite, 2: 217–230
Petter, A. J., Maillard, C. (1987): Ascarides des Poissons de Méditerranée occidentale. Bull. Mus. Nat. Hist. Nat., 4e Sér., Sect. A, 9: 773–798
Raffel, T. R., Anderson, T. K. (2009): A new species of Hysterothylacium (Nematoda: Anisakidae) from the stomach of the redspotted newt, Notophthalmus viridescens, from Pennsylvania fishless ponds. J. Parasitol., 95: 1503–1506. DOI: http://dx.doi.org/10.1645/GE-2092.1
Rajyalakshmi, I. 1996: Description of a new species of Hysterothylacium Ward and Magath, 1917 (Nematoda: Anisakidae) from the intestine of marine fish, Nemipterus japonicus (Bloch). Riv. Parassitol., 8: 53–60
Rajyalakshmi, I., Rao, H. K., Shyamasundari, K. (1992): Hysterothylacium neocornutum n. sp. (Nematoda: Anisakidae) from the freshwater fish, Anguilla bicolor bicolor McClelland of Godavari river (Rajahmundry). Riv. Parassitol., 9: 147–159
Rossin, M. A., Datri, L. L., Incorvaia, I. S., Timi, J. T. (2011): A new species of Hysterothylacium (Ascaridoidea, Anisakidae) parasitic in Zenopsis conchifer (Zeiformes, Zeidae) from Argentinean waters. Acta Parasitol., 56: 310–314. DOI: 10.2478/s11686-011-0062-6
Author information
Authors and Affiliations
Corresponding author
About this article
Cite this article
Moravec, F., Taraschewski, H., Appelhoff, D. et al. A new species of Hysterothylacium (Nematoda: Anisakidae) from the giant mottled eel Anguilla marmorata in South Africa. Helminthologia 49, 174–180 (2012). https://doi.org/10.2478/s11687-012-0035-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.2478/s11687-012-0035-9