Two new species of the genus Thalassironus de Man, 1889 (Nematoda, Enoplida, Ironidae) from the coral reefs in Vietnam
DOI:
https://doi.org/10.33910/2686-9519-2024-16-1-174-183Keywords:
Vietnam, South China Sea, coral reefs, free-living nematodes, Thalassironus coralis sp. nov., Thalassironus longicaudatus sp. nov.Abstract
The paper provides illustrated descriptions of two nematode species of the genus Thalassironus de Man, 1889 found in the coral reefs in Vietnam. Th. coralis sp. nov. is morphologically similar to Th. bipartitus (Wieser, 1955) and Th. bohaensis Zhang, 1990, but it differs from both these species by the thinner body, longer outer labial setae and shorter spicules. Th. longicaudatus sp. nov. morphologically similar to Th. bipartitus (Wieser, 1955), but has a thinner body, longer outer labial setae, shorter stoma and no precloacal setae in males.
References
Gagarin, V. G. (2018) An annotated checklist of free-living nematodes from mangrove thickets of Vietnam. Zootaxa, vol. 4403, no. 2, pp. 261–288. https://doi.org/10.11646/zootaxa.4403.2.3 (In English)
Gagarin, V. G. (2020) Microlaimus capitatus sp. n. and Dichromadora simplex Timm, 1961 (Nematoda, Chromadorae) from the coast of Vietnam. Zootaxa, vol. 4732, no. 2, pp. 323–331. https://doi.org/10.11646/zootaxa.4732.2.7 (In English)
Gagarin, V. G., Nguyen, D. T. (2023a) Dva novykh dlya nauki vida svobodnozhivushchikh nematod semejstva Desmodoridae Filipjev, 1922 (Nematoda, Desmodorida) s korallovykh rifov vo Vietname [Two new for science of free-living nematodes of family Desmodoridae Filipjev, 1922 (Nematoda, Desmodorida) from coral reefs in Vietnam]. In: A. V. Krylov (ed.). Trudy Instituta biologii vnutrennikh vod RAN. Vyp. 101 (104) [Transactions of Papanin Institute for Biology of Inland Waters RAS]. Borok: IBIW RAS Publ., pp. 39–48. https://doi.org/10.47021/0320-3557-2023-38-47 (In Russian)
Gagarin, V. G., Nguyen, D. T. (2023b) Metachromadora (Bradylaimus) tenuis sp.n. Spirinia laevioides Gerlach, 1963 (Nematoda, Desmodorida) s korallovykh rifov vo Vietname [Metachromadora (Bradylaimus) tenuis sp. n. and Spirinia laevioides Gerlach, 1963 (Nematoda, Desmodorida) from coral reefs in Vietnam]. Trudy Instituta biologii vnutrennikh vod RAN. Vyp. 102 (105) [Transactions of Papanin Institute for Biology of Inland Waters RAS. No. 102 (105)]. Borok: IBIW RAS Publ., pp. 25–35. https://doi.org/10.47021/0320-3557-2023-25-36 (In Russian)
Nguyen, D. T., Gagarin, V. G. (2017) Free-living nematodes from mangrove forest in the Yên River estuary (Vietnam). Inland Water Biology, vol. 10, pp. 266–274. https://doi.org/10.1134/S1995082917030129 (In English)
Nguyen, D. T., Smol, N., Vangelsen, A., Nguyen, V. T. (2011) Six new species of the genus Onyx Cobb, 1991 (Nematoda, Desmodorida) from coastal areas in Vietnam. Russian Journal of Nematology, vol. 19, no. 1, pp. 1–20. (In English)
Nguyen, V. T., Nguyen, T. H., Gagarin, V. G. (2012) Two new nematode species of the family Diplopeltidae Filipjev, 1918 (Nematoda, Araeolaimida) from coast of Vietnam. Journal of Biology (Hanoi), vol. 34, no. 1, pp. 1–5. https://doi.org/10.15625/0866-7160/v34n1.663 (In English)
Phan, K. L., Nguyen, T. T., Gagarin, V. G., Nguyen, D. T. (2023) Theristus coralis sp. n. and Thalassomonhystera gracilima sp. n. (Nematoda, Monhysterida) from coral reef off the coast of Vietnam. Amurian Zoological Journal, vol. 15, № 2, pp. 401–410. https://doi.org/10.33910/2686-9519-2023-15-2-401-410 (In English)
Seinhorst, J. W. (1959) A rapid method for the transfer of nematodes from fixative to anhydrous glycerin. Nematologica, vol. 4, no. 1, pp. 67–69. (In English)
Tchesunov, A. V., Nguyen, V. T., Nguyen, D. T. (2014) A review of the genus Litinium Cobb, 1920 (Nematoda, Enoplida, Oxystomidae) with description of four new species from two constructing habitats. Zootaxa, vol. 3872, № 1, pp. 57–76. https://doi.org/10.11646/ZOOTAXA.3872.1.5 (In English)
Wieser, W. (1955) A collection of marine nematodes from Japan. Publications of the Seto Marine Biological Laboratory, vol. 4, no. 2-3, pp. 159–181. https://doi.org/10.5134/174529 (In English)
Zhang, Z. (1990) A new species of genus Thalassironus de Man, 1889 (Nematoda, Adenophorea, Ironidae) from the Bohai Sea China. Journal of Ocean University of Qingdao, vol. 20, pp. 103–108. (In English)
Downloads
Published
Issue
Section
License
Copyright (c) 2024 Vladimir G. Gagarin

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
The work is provided under the terms of the Public Offer and of Creative Commons public license Attribution-NonCommercial 4.0 International (CC BY-NC 4.0). This license allows an unlimited number of persons to reproduce and share the Licensed Material in all media and formats. Any use of the Licensed Material shall contain an identification of its Creator(s) and must be for non-commercial purposes only.