Zalonema		Contents		Rev: 04/29/2024
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Zalonema Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Desmodoridae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

Chromadorea

  Chromadoria

   Desmodorida

Desmodorina

             Deamodoroidea

                Desmodoridae

        Spiriniinae

      Zalonema Cobb, 1920

    Type species of the genus:  Zalonema nudum Cobb, 1920

    Synonyms:

     Heterodesmodora Micoletzky, 1924

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Morphology and Anatomy:

• Long, cylindrical, body appearing gold-brown under light microscope.
• Cuticular annuli fine, without ornamentation.
• Cephalic capsule glass-like, rounded triangular
•  Labial sensilla tiny, 6 + 6, with four cephalic setae and 4-8 subcephalic setae or papillae anterior to, or at anterior edge, of amphids,
• Amphidial fovea multispiral (two turns or more) located  on cephalic capsule.
• Short and small somatic setae arranged in several longitudinal rows.
• Pharynx cylindrical with pyriform basal bulb.  
• Tail conical, smooth at tip.
• Caudal gland ducts and spinneret conspicuous.

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Distribution:

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Feeding:

Probably epistrate feeders

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Biology and Ecology:

Marine nematodes, free-lving.

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Life Cycle:

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Ecosystem Functions and Services:

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Management:

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References:

Cobb, N.A. (1920) One hundred new nemas (type species of 100 new genera). Contributions to a Science of Nematology (Cobb), 9: 217-343. http://dx.doi.org/10.2307/3272166

Gharahkhani, A., Pourjam, E., Leduc, D., Pedram, M. 2021. Further data on Iranian marine nematode diversity, with description of three new Desmodoridae Filipjev, 1922 (Nematoda: Desmodorida) species from the Persian Gulf. Nematology 23:781-802.

Larrazabal-Filho, A.L., Da Silva, M.C., Esteves, A.M. 2015. Four new species of free-living marine nematodes of the family Desmodoridae (Nematoda: esmodorida) and a redescription of Desmodora nini (Inglis, 1963)
from the continental shelf off northeastern Brazil. Zootaxa 4021, 63-92. DOI: 10. 11646/zootaxa.4021.1.3

Tchesunov, A.V. 2014. Order Chromadorida Chitwood, 1933. In: Schmidt-Rhaesa, A. (Ed.). Handbook of zoology, Gastrotricha, Cyclioneuralia and Gnathifera. Volume 2: Nematoda. Hamburg, Germany, De Gruyter, pp. 374-434.

Verschelde, D. and Vincx, M. 1996. Four new species of the family Desmodoridae (Nematoda, Desmodoroidea) from Kenya. Zoologica Scripta 25, 1-20. DOI: 10.1111/j.1463- 6409.1996.tb00148.x

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Copyright © 1999 by Howard Ferris.
Revised: April 29, 2024.