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Issue: Vol. 5537 No. 1: 7 Nov. 2024
Type: Article
Published: 2024-11-07
DOI: 10.11646/zootaxa.5537.1.6
Page range: 115-132
Abstract views: 120
PDF downloaded: 11

New species of Metadesmolaimus, Rhynchonema and Gairleanema (Nematoda) from the sandy beaches of the Sea of Japan

Far Eastern Federal University; FEFU Campus; 10 Ajax Bay; Russky Island; Vladivostok; 690922; Russia; A.V. Zhirmunsky National Scientific Centre of Marine Biology FEB RAS; 17 Paltchevsky St.; Vladivostok; 690041; Russia
Far Eastern Federal University; FEFU Campus; 10 Ajax Bay; Russky Island; Vladivostok; 690922; Russia; A.V. Zhirmunsky National Scientific Centre of Marine Biology FEB RAS; 17 Paltchevsky St.; Vladivostok; 690041; Russia
Nematoda Nematode Xyalidae Metadesmolaimus innii sp. nov. Rhynchonema pulchrum sp. nov. Tripyloididae Gairleanema arenosa sp. nov. intertidal sands taxonomy

Abstract

Little is known about the diversity and systematics of nematodes from intertidal sands of the Sea of Japan (East Sea). Here, nematodes of the rare genus Gairleanema and two new species of the family Xyalidae are described and illustrated. Metadesmolaimus innii sp. nov. can be easily distinguished by the combination of a large conspicuous amphideal fovea and unequal long spicules (the right spicule is larger than the left one). Rhynchonema pulchrum sp. nov. can be easily distinguished from all known congeneric species in having a combination of the following features: the number of annulations from the anterior end to the anterior edge of the amphideal fovea (37–38 in males and 34 in females); amphideal fovea form and size (oval in males vs сircular in females); large spicules with proximal capitulum, gubernaculum with paddle-like apophysis and inflated precloacal annuli. Gairleanema arenosa sp. nov. is characterized by the combination of the following characters: the moderately long body (1445–1707μm), long setiform labial sensilla with bulbous swellings and thin cephalic setae; unispiral small amphidial fovea located at the posterior edge of the cephalic capsule, dorsal tooth, subventral onchia and small denticles; four–five pairs of mamilliform supplementary organs.

 

References

  1. Allgén, C.A. (1940) Über einige neue freilebende Nematoden von der Nordwest- und Nordküste Norwegens. Folia Zoologica et Hydrobiologica, 10, 443–449.
  2. Aryuthaka, C. (1989) Two new species of the genus Rhynchonema (Nematoda, Xyalidae) from Amakusa, South Japan. Hydrobiologia, 171, 3–10. https://doi.org/10.1007/BF00005719
  3. Bezerra, T.N., Smol, N. & Vincx, M. (2014) Two new species of Rhynchonema Cobb, 1920 from a Brazilian sandy beach. Marine Biodiversity, 44, 343–365. https://doi.org/10.1007/s12526-014-0223-6
  4. Boucher, G. (1974) Six especes nouvelles du genre Rhynchonema (Rhynchonematinae - Nematoda). Cahiers de Biologie Marine, XV, 447–463.
  5. Chitwood, B.G. (1951) North American marine nematodes. Texas Journal of Science, 3, 627–672.
  6. Cobb, N.A. (1920) One hundred new nemas (type species of 100 new genera). Contribution to a Science of Nematology, IX, 217–343.
  7. Datta, T.K., Navarrete, A.D.J. & Mahapatro, A. (2015) Rhynchonema dighaensis sp. nov. (Monhysterida: Xyalidae): a marine nematode from the Indian coast with an illustrated guide and modified key for species of Rhynchonema Cobb, 1920. Zootaxa, 3905 (3), 365–380. https://doi.org/10.11646/zootaxa.3905.3.3
  8. Fadeeva, N.P. & Zograf, J.K. (2010) New and known species of Enoplolaimus (Enoplida: Thoracostomopsidae) from the Sea of Japan. Nematology, 12 (5), 731–749. https://doi.org/10.1163/138855409X12607871174535
  9. Fadeeva, N.P., Mordukhovich, V.V. & Zograf, J.K. (2012) New species of the genus Oxyonchus (Enoplida: Thoracostomopsidae) from the Far Eastern Seas. Journal of the Marine Biological Association of the United Kingdom, 92 (5), 947–957. https://doi.org/10.1017/S0025315411001937
  10. Filipjev, I. (1918) Free-living marine nematodes of the Sevastopol area. Trudy osoboi zoologicheskoi laboratorii I Sevastopol’skoi biologicheskoi stantsii Rossiiskoi Akademii Nauk, Series 2, 1–350.
  11. Filipjev, I.N. (1929) Classification of free-living Nematoda and relations to parasitic forms. Journal of Parasitology Urbana, 15,281–282.
  12. Fonseca, G. & Bezerra, T.N. (2014) Order Monhysterida. In: Shmidt-Rhaesa, A. (Ed.), Handbook of Zoology Gastrotricha, Cyclioneura and Gnathifera. Vol. 2. Nematoda. De Gruyter, Hamburg, pp. 435−465. https://doi.org/10.1515/9783110274257.435
  13. Gagarin, V.G. (2013) Two new species of the genus Metadesmolaimus Stekhoven, 1935 (Nematoda, Monhysterida) from coast of Vietnam. International Journal of Nematology, 23, 119–128.
  14. Gagarin, V.G. (2020) Two new species of the family Xyalidae Chitwood, 1951 (Nematoda, Monhysterida) from the water bodies of Vietnam. Amurian Zoological Journal, 12, 477–489. https://doi.org/10.33910/2686-9519-2020-12-4-477-489
  15. Gerlach, S.A. (1953) Die Nematodenbesiedlung des Sandstrandes und des Küstengrudwassers an der italienischen Küste. I. Systematicher teil. Archivio Zoologico Italiano, 37, 517–640.
  16. Gerlach, S.A. (1955) Zur Kenntnis der freilebenden marinen Nematoden von San Salvador. Z. wiss. Zeitschrift für Wissenschaftliche Zoologie, 158, Heft 2–4, 249–303.
  17. Gerlach, S.A. (1956) Diagnosen neuer Nematoden aus der Kieler Bucht. Kieler Meeresforschungen, 12, 85–109.
  18. Gerlach, S.A. & Riemann, F. (1973) The Bremerhaven checklist of aquatic nematodes. A catalogue of Nematoda Adenophoreaexcluding the Dorylaimida. Part I. Veroffentlichungen des Instituts fur Meeresforschung in Bremerhaven. Supplement 4, Heft 1,1–404.
  19. Gourbault, N. (1982) Nematodes marins de Guadeloupe. I. Xyalidae nouveaux des genres Rhynchonema Cobb et Prorhynchonema nov. gen. Bulletin du Muséum National d’Histoire Naturelle Paris, 4, 75–87. https://doi.org/10.5962/p.286030
  20. Guo, Y.Q., Chen, Y.Z. & Liu, M.D. (2016) Metadesmolaimus zhanggi sp. nov. (Nematoda: Xyalidae) from East China Sea, with a pictorial key to Metadesmolaimus species. Cahiers de Biologie Marine, 57, 73–79.
  21. Guo, W., Meng, Z. & Wang, C. (2023) Two New Nematode Species, Desmolaimus magnus sp. nov. (Monhysterida, Linhomoeidae) and Metadesmolaimus robustus sp. nov. (Monhysterida, Xyalidae), from the Yellow Sea, China with Phylogenetic Analyses within Linhomoeidae and Xyalidae. Diversity, 15 (11), 1130. https://doi.org/10.3390/d15111130
  22. Hopper, B.E. (1961) Marine Nematodes from the coast line of gulf of Mexico II. Canadian Journal of Zoology, 39, 359–365. https://doi.org/10.1139/z61-039
  23. Hua, E., Zhang, Z.N., Zhou, H., Mu, F.H., Li, J., Zhang, T., Cong, B.Q. & Liu, X.S. (2016) Meiofauna Distribution in Intertidal Sandy Beaches Along China Shoreline (18-40° N). Journal of Ocean University of China, 15 (1), 19–27. https://doi.org/10.1007/s11802-016-2740-3
  24. Huang, H.L. & Liu, S.F. (2002) One new species of free-living marine nematodes from southeastern beach of Xiamen Island. Journal of Oceanography in Taiwan Strait, 21, 177–180.
  25. Inglis, W.G. (1983) An outline classification of the phylum Nematoda. Australian Journal of Zoology, 31, 243–255. https://doi.org/10.1071/ZO9830243
  26. Li, T., Ban, S. & Huang, Y. (2023) Two new species of Xyalidae Chitwood, 1951 (Nematoda, Monhysterida) from Chinese Sea Area. Zootaxa, 5369 (2), 255–268. https://doi.org/10.11646/zootaxa.5369.2.5
  27. Liang, H., Guo, W. & Wang, C. (2024) Two new species of Nematoda: Gairleanema pulchra sp. nov. (Tripyloididae) and Axonolaimus dimorphous sp. nov. (Axonolaimidae) from the Yellow Sea, China. Zootaxa, 5447 (4), 547–561. https://doi.org/10.11646/zootaxa.5447.4.6
  28. Long, S.M. & Ross, O.B.H. (1999). Vertical distribution of nematodes (Nematoda) and harpacticoid copepods (Copepoda: Harpacticoidea) in muddy and sandy bottom of intertidal zone at Lok Sawi, Sabah, Malaysia. The Raffles Bulletin of Zoology, 47 (2), 349–363.
  29. Lorenzen, S. (1971) Die Nematodenfauna im Verklappungsgebiet für Industrieabwasser nordwestlich von Helgoland: I. Araeolaimida und Monhysterida. Zoologischer Anzeiger, 187 (3), 223–248.
  30. Lorenzen, S. (1972) Die Nematodenfauna im Verklappungsgebiet für Industrieabwässer norwestlich von Helgoland I. Araeolaimida und Monhysterida. Zoologischer Anzeiger, 187, 223–248.
  31. Lorenzen, S. (1975) Rhynchonema–Arten (Nematodes, Monhysteridae) aus Südamerika und Europa. Mikrofauna Meeresboden, 55, 1–29.
  32. Lorenzen, S. (1981) Entwurf eines phylogenetischen Systems der freilebenden Nematoden. Veroeffentlichungen des Instituts fuer Meeresforschung in Bremerhaven Supplement, 7, 1–472
  33. Maria, T.F., Paiva, P., Vanreusel, A. & Esteves, A.M. (2013) The relationship between sandy beach nematodes and environmental characteristics in two Brazilian sandy beaches (Guanabara Bay, Rio de Janeiro). Anais da Academia Brasileira de Ciências, 85 (1), 257–270. https://doi.org/10.1590/S0001-37652013005000019
  34. McLachlan, A. & Defeo, O. (2017) The Ecology of Sandy Shores. 3rd Edition. Academic Press, London, 572 pp.
  35. Mordukhovich, V.V., Fadeeva, N.P., Semenchenko, A.A. & Zograf, J.K. (2015) New species of Pseudochromadora Daday, 1899 (Nematoda: Desmodoridae) from Russky Island (the Sea of Japan). Russian Journal of Nematology, 23, 125–135.
  36. Murphy, D.G. (1964) Rhynchonema subsetosa, a new species of marine nematode, with a note on the genus Phylolaimus Murphy, 1963. Proceedings of Helminthological Society of Washington, 31, 26–28.
  37. Nemys (Eds.) (2023) Nemys: World Database of Nematodes. Available from: https://nemys.ugent.be (accessed 10 May 2023) https://doi.org/10.14284/366
  38. Nicholas, W.L. & Hodda, M. (1999) The free-living nematodes of a temperate, high energy, sandy beach: faunal composition and variation over space and time. Hydrobiologia, 394, 113–127. https://doi.org/10.1023/A:1003544115600
  39. Nicholas, W.L. & Stewart, A.C. (1995) New genera, species and new subfamily of Xyalidae (Nematoda: Monhysterida) from ocean beaches in Australia and Thailand. Transactions of the Royal Society of South Australia, 119, 47–66.
  40. Platt, H.M. (1983) New species of Metadesmolaimus and Stephanolaimus (Nematoda: Chromadoria) from Northern Ireland with reviews of the genera. Zoological Journal of the Linnean Society, 78, 363−373. https://doi.org/10.1111/j.1096-3642.1975.tb02265.x
  41. Rodriguez, J.G. (2004) Community structure of intertidal meiofauna along a gradient of morphodynamic state on exposed North Sea beach. Sarsia, 89, 22–32. https://doi.org/10.1080/00364820310003307
  42. Schuurmans Stekhoven, J.H. (1935) Additional notes to my monographs on the freeliving marine nemas of the Belgian coast I and II, written in collaboration with W. Adam and L.A. De Coninck, with some remarks on the ecology of Belgian nemas. Mémoires du Musée Royal d’Histoire Naturelle de Belgique, 72, 1–36.
  43. Schuurmans Stekhoven, J.H. (1950) The freeliving marine nemas of the Mediterranean: I. The bay of Villefranche. Vol. 37. Mémoires de l’Institut Royal des Sciences Naturelles de Belgique, Deuxième Série, 1–220.
  44. Seinhorst, J.W. (1959) A rapid method for the transfer of nematodes from fixative to anhydrous glycerin. Nematologica, 4, 67–69. https://doi.org/10.1163/187529259X00381
  45. Smol, N., Muthumbi, A. & Sharma, J. (2014) Order Enoplida. In: Schmidt-Rhaesa, A. (Ed.), Handbook of zoology. Gastrotricha, Cycloneuralia, Gnathifera. Vol. 2. Nematoda. de Gruyter, Berlin, pp. 193–249. https://doi.org/10.1515/9783110274257.193
  46. Tauheed, U. & Ahmad, W. (2017) Three new species of the marine nematode genus Rhynchonema Cobb, 1920 (Nematoda: Monhysterida) from India. International Journal of Nematology, 27 (1–2), 7–21.
  47. Tchesunov, A.V. (1990) New taxa of marine free-living nematodes of the family Xyalidae Chitwood, 1951 (Nematoda, Chromadoria, Monhysterida) from the White Sea. In: Gagarin, V.G. (Ed.), Fauna, biology and systematics of free-living lower worms. Proceedings of the Academy of Sciences of the USSR. Institute of Inland Water Biology, Rybinsk, pp. 101−117. [in Russian]
  48. Venekey, V., Gheller, P.F., Maria, T.F., Brustolin, M.C., Kandratavicius, N., Vieira, D.C., Brito, S., Souza, G.S. & Fonseca, G. (2014) The state of the art of Xyalidae (Nematoda, Monhysterida) with reference to the Brazilian records. Marine Biodiversity, 44, 367−390. https://doi.org/10.1007/s12526-014-0226-3
  49. Vitiello, P. (1967) Deux nouvelles spèces du genre Rhynchonema (Nematoda, Monhysteridae). Bulletin de la Societe Zoologique de France, 92, 113–121.
  50. Warwick, R.M. & Platt, H.M. (1973) New and known marine nematodes from a Scottish sandy beach. Cahiers de Biologie Marine, 14, 135–158.
  51. Wieser, W. & Hopper, B. (1967) Marine nematodes of the east coast of North America. I. Florida. Bulletin of the Museum of Comparative Zoology at Harvard University, 135, 239–344.
  52. Wieser, W. (1956) Free-living marine nematodes III Axonolaimoidea and Monhysteroidea. Reports of The Lund University Chile Expedition 1948–49 (10). Lunds Univenztets Arsskrift, 52, 1–115.
  53. Wieser, W. (1959) Reports of the Lund University Chile Expedition 1948–49. 34. Free-living marine nematodes. IV. General part. Lunds Univertitet Arsskrift, 55, 1–111.