Ironidae De Man 1876
Creators
Description
Family Ironidae de Man, 1876
1. Ironus gagarini Tsalolikhin, 1987 — {11, 12, 70} (11, 0, 0, 9; 4)
Population structure and abundance. 1 to 2 juvenile specimens and/or females at each site.
Ecology and distribution. Hydrobiont. Registered in reservoirs and lakes in countries of Central Asia (Azerbaijan, Kyrgyzstan) and Europe (Ukraine) (Tsalolikhin 1987; Gagarin 1993, 2001), as well as in rivers and small waterbodies in Southeast Asia (Vietnam, Thailand, Malaysia) (Nguyen & Nguyen 2005; Tsalolikhin 2009). Presumably, this species has wider distribution in the waters of Eurasia, and possibly on other continents (see Remarks).
Remarks. Tsalolikhin (2009) presumes that I. gagarini also occurs in North and South America but has been identified there as a similar species, I. longicollis Daday, 1899. At the same time, Andrássy (2007) considers I. longicollis to be a synonym of I. ignavus Bastian, 1865. It is thus possible that both before and after the description of I. gagarini, many occurrences of this species have been identified as either I. longicollis or I. ignavus.
2. Ironus ignavus Bastian, 1865 — {23, 24, 31, 36} (11, 4, 8, 0; 6)
Population structure and abundance. At sites 23, 24, and 36—a few (2 to 5) juvenile specimens and females including one with eggs (estimated total abundance 1–2 x10 3 /m2), at 31—numerous (about 100) juveniles, females and gravid females in equal proportion (36 x10 3 individuals/m2).
Ecology and distribution. Amphibiont. Dwells in water, wet soil and mosses. Cosmopolitan. Recorded from all continents except Antarctica (Andrássy 2007). Frequently observed in Vietnam (Nguyen & Nguyen 2005; Nguyen 2007; Gagarin & Nguyen 2008a).
3. * Ironus paludicola Schneider, 1937 — {8} (5, 0, 0, 0; 1)
Population structure and abundance. Some juvenile specimens (5), females (6) and gravid females (2) (5 x10 3 /m2).
Ecology and distribution. Hydrobiont. Found in various waterbodies in Indonesia (Sumatra), North (Mexico), Central (Costa-Rica) and South (Surinam) America and Africa (Mauritania, Tanzania, Ethiopia) (Tsalolikhin 1996; Andrássy 2011). First record from Vietnam.
Remarks. Males are unknown (Andrássy 2011).
Notes
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Linked records
Additional details
Identifiers
Biodiversity
References
- Tsalolikhin, S. Y. (1987) Revision of the genus Ironus (Nematoda, Dorylaimida). Zoologicheskii Zhurnal, 66, 661 - 673. [in Russian]
- Gagarin, V. G. (1993) Free-living Nematodes from the Fresh Waters of Russia and Adjacent Countries (Order Monhysterida, Areaolaimida, Chromadorida, Enoplida, Mononchida). Gidrometeoizdat, St. Petersburg, 352 pp. [in Russian]
- Gagarin, V. G. (2001) Free-living Nematodes of the Fresh Waters of Russia and Adjacent Countries: Fauna and the Pathways of its Formation, Ecology, Taxonomy, Phylogeny. Nauka, Moscow, 170 pp. [in Russian]
- Nguyen, T. T. & Nguyen, V. T. (2005) Comparison on Free-living Nematode Compositions of the Cau, Day, Cam and Nhue Rivers. T ap chi Sinh H oc, 27, 36 - 42. [in Vietnamese]
- Tsalolikhin, S. Y. (2009) To the fauna of free-living freshwater nematodes of South-East Asia. Trudy zoologicheskogo instituta RAN, 313, 427 - 434. [in Russian]
- Andrassy, I. (2007) Free-living nematodes of Hungary (Nematoda Errantia). II. Pedozoologica Hungarica, No. 4, 1 - 496.
- Nguyen, V. T. (2007) Free-living nematodes Monhysterida, Araeolaimida, Chromadorida, Rhabditida, Enoplida, Mononchida, Dorylaimida. In: Dang, N. T. (Ed.), Fauna of Fietnam. Fol. 22. Science and Technics Publishing House, Hanoi, 455 pp. [in Vietnamese]
- Gagarin, V. G. & Nguyen, T. T. (2008 a) Free-living nematodes from the Chu River, Northern Vietnam. Inland Water Biology, 1, 14 - 18.
- Tsalolikhin, S. Y. (1996) Review of the fauna of free-living nematodes from inland waters of Ethiopia. Zoosystematica Rossica, 4, 205 - 218.
- Andrassy, I. (2011) A study on Ironus Bastian, 1865 (Nematoda: Inoplida) with descriptions of two new and two known species. International Journal of Nematology, 21, 27 - 41.