Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 5653 No. 3: 27 Jun. 2025
Type: Article
Published: 2025-06-27
DOI: 10.11646/zootaxa.5653.3.5
Page range: 379-395
Abstract views: 37
PDF downloaded: 1

Two new nematode species: Axonolaimus rushanensis sp. nov. (Axonolaimidae) and Trichromadora spheribulba sp. nov. (Chromadoridae) from the Yellow Sea, China

College of Agriculture and Biology; Liaocheng University; Liaocheng; 252059; P.R. China
College of Agriculture and Biology; Liaocheng University; Liaocheng; 252059; P.R. China
College of Agriculture and Biology; Liaocheng University; Liaocheng; 252059; P.R. China
Nematoda identification key morphometrics nematode diversity Rushan

Abstract

Two new free-living nematode species, Axonolaimus rushanensis sp. nov. and Trichromadora spheribulba sp. nov. are described from Rushan, Yellow Sea, China. Axonolaimus rushanensis sp. nov. is characterized by two cervical setae, amphidial fovea loop-shaped with rounded outline at the level of buccal cavity, spicules short and arcuate, cuticularised and with straight capitulum, gubernaculum with dorso-caudal apophyses and tail conical. Trichromadora spheribulba sp. nov. is characterized by long and slender body, buccal cavity with one large hollow dorsal tooth and two small subventral teeth, pharynx with an obvious posterior bulb, spicules long and arc-shaped, gubernaculum boat-shaped and swollen in the middle part, seven unequidistant cup-shaped supplements and tail conical. An identification key to valid species of the genus Trichromadora is also given.

 

References

  1. Allgén, C.A. (1935) Die freilebenden Nematoden des Öresunds. Capita Zoologica, 6 (3), 1–192.
  2. Allgén, C.A. (1947a) Zur Kenntnis norwegischer Nematoden XI. Weitere Nematoden von der Insel Storfosen. Det Kongelige norske Videnskabers Selskab Forhandlinger, 14 (16), 56–59.
  3. Allgén, C.A. (1947b) West American Marine Nematodes (Papers from Dr. Th. Mortensen’s Pacific Expedition 1914–16. LXXV). Videnskabelige meddelelser fra den naturhistoriske forening i Kjöbenhavn, 110, 65–219.
  4. Allgén, C.A. (1951) Pacific Freeliving Marine Nematodes. (Papers from Dr. Th. Mortensen’s Pacific Expedition 1914–16. LXXVI). Videnskabelige meddelelser fra den naturhistoriske forening i Kjöbenhavn, 113, 263–411.
  5. Allgén, C.A. (1959) Free living marine nematodes. In: Odhner, N.H.J. (Ed.), Further zoological results of the Swedish Antarctic expedition. 1901–1903. Kungl. Boktr. P.A. Norstedt & Sonerpp, Stockholm, pp. 1–293.
  6. Belogurov, O.I. & Koroleva, N.I. (1975) Diagnoses of the genera Axonolaimus, Apodontium, Ascolaimus, Margonema, Odontophora Nematoda, Axonolaimidae of subfamily Axonolaiminae with description of some Far East species. Zoologicheskii Zhurnal, 548, 1141–1148.
  7. Boucher, G. (1972) Redescription de neuf espèces de Nématodes libres marins de la baie de Banyuls-sur-mer. Bulletin du Muséum national d’Histoire naturelle, Paris, 3e série, Zoologie, 34 (40), 449–474. https://doi.org/10.5962/p.272577
  8. Boucher, G. (1973) Nématodes libres marins des iles hautes de Polynésie I. Comesomatidae et Axonolaimidae. Extrait des Cahiers du Pacifique, 17, 205–231.
  9. Brunetti, B. (1941) Contributo alla conoscenza dei Nematodi liberi. I. Tre specie del genere Axonolaimus de Man del mar Tirreno. Bolletino di Zoologia, 12, 199–206. https://doi.org/10.1080/11250004109440024
  10. Bütschli, O. (1874) Zur Kenntnis der freilebenden Nematoden, insbesondere der des Kieler Hafens. Abhandlungen der Senckenbergischen naturforschenden Gesellschaft, 9 (Bd), 1–56.
  11. Chitwood, B.G. (1933) A revised classification of the Nematoda. In: Cort, W.W., Hegner, R. & Root, F.M. (Eds.), The Journal of Parasitology Papers in Helminthology Ninth Annual Meeting. Boston, Massachusetts (USA), December 1933, pp. 115–148.
  12. Chitwood, B.G. (1936) Some marine nematodes from North Carolina. Proceedings of the Helminthological Society of Washington, 3 (1), 1–16.
  13. Cobb, N.A. (1930) Marine free-living nemas. Scientic Reports Australasian Antarctic Expedention (1911–1914), Series C—Zoology and Botany, 6 (7), 1–28.
  14. Crites, I.L. (1961) Some free-living marine nematodes from the sand beaches of Piver’s Island, North Carolina. Journal of the Elisha Mitchell Scientific Society, 77, 75–80.
  15. De Coninck, L.A. & Schuurmans Stekhoven, J.H. (1933) The free living marine nemas of the Belgian Coast. II With general remarks on the structure and the system of nemas. Mémoires du Musée royal d’histoire naturelle de Belgique, 58, 3–163.
  16. de Man, J.G. (1889) Espèces et genres nouveaux de Nématodes libres de la mer du Nord et de la Manche. Mémoires de la Société zoologique de France, 2, 1–10.
  17. de Man, J.G. (1922) Vrijlevende Nematoden. In: Redeke, H.C. (Ed.), Flora en Fauna der Zuiderzee, Te Helder (C. de Boer), 1922, pp. 214–261.
  18. Ditlevsen, H. (1919) Marine freeliving nematodes from Danish waters. Videnskabelige Meddelelser fra dansk naturhistorisk Forening i Kjøbenhavn, 70, 147–214.
  19. Filipjev, I.N. (1917) Un Nematode libre nouveau de la mer Caspienne, Chromadorissa gen. nov. (Chromadoridae, Chromadorini) (Novaia Svobodnaia Nematoda iz Kaspiiskogo Moria Chromadorissa Gen. Nov. (Chromadoridae, Chromadorini)). Revue Zoologique Russe (Russkii Zoologicheskii Zhurnal), 2, 24–30.
  20. Filipjev, I.N. (1918) Free-living marine nematodes of the Sevastopol area. Transactions of the Zoological Laboratory and the Sevastopol Biological Station of the Russian Academy of Sciences, 2 (4), 1–350. [in Russian]
  21. Fonseca, G. & Bezerra, T.N. (2014) Order Monhysterida Filipjev, 1929. In: Schmidt-Rhaesa, A. (Ed.), Gastrotricha, Cycloneuralia, Gnathifera. Vol. 2. nematoda. Handbook of Zoology. De Gruyter, Berlin, pp. 435–465. https://doi.org/10.1515/9783110274257.435
  22. Gerlach, S.A. (1951) Freilebende Nematoden aus Varna an der bulgarischen Küste des Schwarzen Meeres. Archivio für Hydrobiologie, 45, 193–212.
  23. Gerlach, S.A. (1953) Die Nematodenbesiedlung des Sandstrandes und des Küstengrudwassers an der italienischen Küste. I. Systematicher teil. Archivio Zoologico Italiano, 37, 517–640.
  24. Gerlach, S.A. (1956) Die Nematodenbesiedlung des tropischen Brandungsstrandes von Pernambuco. Brasilianische MeeresNematoden II. Kieler Meeresforschung, 12, 202–218.
  25. Gerlach, S.A. (1957) Die Nematodenfauna des Sandstrandes an der Küste von Mittelbrasilien (Brasilianische Meerse-Nematoden IV). Mitteilungen aus dem Zoologischen Museum in Berlin, 33 (2), 411–459. https://doi.org/10.1002/mmnz.19570330206
  26. Gerlach, S.A. & Riemann, F. (1973/1974) The Bremerhaven Checklist of Aquatic Nematodes. A Catalogue of Nematoda Adenophorea excluding the Dorylaimida. Veröffentlichungen des instituts für Meeresforschung in Bremerhaven Supplementband, 4, 1–736.
  27. Guo, W. Liang, H.X. Wang, M.N. & Wang, C.M. (2023) Description of two new species of Nematoda: Litinium macramphida sp. nov. (Oxystominidae) and Cyartonema breviseta sp. nov. (Cyartonematidae) from the Yellow Sea, China. Zootaxa, 5339 (6), 577–586. https://doi.org/10.11646/zootaxa.5339.6.6
  28. Hopper, B.E. (1963) Marine nematodes from the coast line of the Gulf of Mexico. III. Additional species from Gulf Shores, Alabama. Canadian Journal of Zoology, 41, 841–863. https://doi.org/10.1139/z63–056
  29. Kreis, H.A. (1929) Freilebende marine Nematoden von der Nordwest-Küste Frankreichs (Trébeurden Côtes du Nord). Capita Zoologica II, 7, 1–98.
  30. Leduc, D. & Zhao, Z.Q. (2023) The Marine Biota of Aotearoa New Zealand. Ngā toke o Parumoana: Common free-living Nematoda of Pāuatahanui Inlet, Te-Awarua-o-Porirua Harbour. NIWA Biodiversity Memoir. NIWA Biodiversity, Wellington, 212 pp.
  31. Liang, H.X. Guo, W. & Wang, C.M. (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
  32. Lorenzen, S. (1971) Die Nematodenfauna im Verklappungsgebiet für Industrieabwässer nordwestlich von Helgoland: I. Araeolaimida und Monhysterida. Zoologischer Anzeiger, 187 (3), 223–248.
  33. Lorenzen, S. (1972) Die Nematodenfauna der sublitoralen Region im deutschen Küstenbereich, unter besonderer Berücksichtigung des Ciliatenbefalls. Veröffentlichungen des Instituts für Meeresforschung in Bremerhaven, 13, 53–110.
  34. Lorenzen, S. (1994) The phylogenetic systematics of free-living nematodes. Ray Society Series. No. 162. The Ray Society Institute, London, 383 pp.
  35. Luc, M. & De Coninck, L.A. (1959) Nématodes libres marins de la région de Roscoff. Archives de zoologie expérimentale et Générale, 98, 103–165.
  36. McIntyre, A.D. & Warwick, R.M. (1984) Meiofauna techniques. In: Holme, N.A. & McIntyre, A.D. (Eds.), Methods for the Study of Marine Benthos. Blackwell Scientific Publications, Oxford, pp. 217–244.
  37. Meng, Z.Y. Guo, W. & Wang, C.M. (2025) Description of two new species, Sphaerolaimus obesus sp.nov. and Pseudosteineria articulata sp. nov. (Nematoda, Sphaerolaimoidea) from the Yellow Sea, China and phylogenetic analysis within superfamily Sphaerolaimoidea with combined ribosome DNA sequences. Journal of Oceanology and Limnology. [published online] https://doi.org/10.1007/s00343-024-4153-2
  38. Micoletzky, H. (1924) Letzter Bericht über freilebende Nematoden aus Suez. Sber. Akademie der Wiss Wissenschaften Wien Mathematisch-Naturwissenschaftliche Classe, Abteilung I, Band 133, Heft 4/6, 137–179.
  39. Muthumbi, A. & Vincx, M. (1998) Chromadoridae (Chromadorida: Nematoda) from the Indian Ocean: Description of new and known species. Hydrobiologia, 364, 119–153. https://doi.org/10.1023/A:1003109929194
  40. Platonova, T.A. (1971) Exploration of the fauna of the seas VIII (XVI). Fauna and flora of the Possjet Bay of the Sea of Japan. Zoological Institute Academy of Sciences of the USSR, 8 (41), 72–108.
  41. Schulz, E. (1932) Beiträge zur Kenntnis mariner Nematoden aus der Kieler Bucht. Zoologische Jahrbücher, 62, 331–430.
  42. Schuurmans Stekhoven, J.H. & Adam, W. (1931) The free living marine nemas of the Belgian coast. Mémoires du Musée Royal d’histoire Naturelle de Belgique, 49, 1–58.
  43. Schuurmans Stekhoven, J.H. (1935) Additional notes to my monograph on free-living marine nematodes of the Belgian coast: Parts I and II. Mémoires du Musée Royal d'histoire Naturelle de Belgique, 72, 1–36.
  44. Schuurmans Stekhoven, J.H. (1950) The free living marine nemas of the Mediterranean I. The Bay of Villefranche. Mémoires Institut Royal Des Sciences Naturelles de Belgique, 2 (37), 1–220.
  45. Skwarra, E. (1922) Freilebender Nematoden Ostpreussens. Schriften der Physikalisch-Ökonomischen Gesellschaft zu Königsberg, 64, 107–112.
  46. Ssaweljev, S. (1912) Zur Kenntnis der freilebenden Nematoden des Kolafjords und des Relictensee Mogilnoje. Travaux de la Société (impériales) des naturalistes de Saint-Petersbourg, 42 (2/3), 108–126.
  47. Timm, R.W. (1954) A survey of the marine nematodes of Chesapeake Bay, Maryland. The Catholic University of America Biological Studies, 23, 1–70.
  48. Venekey, V. Gheller, P.F. Kandratavicius, N. Cunha, B.P. Vilas-Boas, A.C. Fonseca, G. & Maria, T.F. (2019) The state of the art of Chromadoridae (Nematoda, Chromadorida): A historical review, diagnoses and comments about valid and dubious genera and a list of valid species. Zootaxa, 4578 (1), 1–67. https://doi.org/10.11646/zootaxa.4578.1.1
  49. Vincx, M. & Furstenberg, J.P. (1989) Namibnema papillata gen. et sp.n. and Axonolaimus deconincki sp.n. (Nematoda, Axonolaimoidea) from marine and estuarine beaches of southern Africa. Zoologica Scripta, 18 (2), 231–237. https://doi.org/10.1111/j.1463-6409.1989.tb00448.x
  50. Wang, M.N. Guo, W. & Wang, C.M. (2022) Two new species, Parabathylaimus gracilis sp. nov. and Belbolla sinica sp. nov. (Nematoda: Enoplida), from Yangma Island of the Yellow Sea, China. Zootaxa, 5200 (4), 344–354. https://doi.org/10.11646/zootaxa.5200.4.3
  51. Warwick, R.M. (1970) Fourteen new species of free-living marine nematodes from the Exe estuary. Bulletin of the British Museum (natural History), Zoology, 19 (4), 137–177. https://doi.org/10.5962/bhl.part.24086
  52. Wieser, W. (1956) Free-living marine nematodes III. Axonolaimoidea and Monhysteroidea. Acta Universitets Lunds, Neue Folge 2, 52 (13), 1–115.
  53. Wieser, W. (1959) Free-living nematodes and other small invertebrates of Puget Sound beaches. University of Washington Press, Seattle, Washington, 179 pp.
  54. Wieser, W. & Hopper, B. (1967) Marine nematodes of the east coast of North America. I. Florida. Bulletin Museum of Comparative Zoology, 135 (5), 239–344.

How to Cite

Lv, Y., Yu, H. & Wang, M. (2025) Two new nematode species: Axonolaimus rushanensis sp. nov. (Axonolaimidae) and Trichromadora spheribulba sp. nov. (Chromadoridae) from the Yellow Sea, China. Zootaxa, 5653 (3), 379–395. https://doi.org/10.11646/zootaxa.5653.3.5