Spirinia		Contents		Rev: 11/21/2023
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Spirinia 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

        Spirinia Gerlach, 1963

      

    Synonyms:
     

Spirinia species are separated mainly by the length and distribution of somatic setae, tail shape, relative size and position of amphids and cephalic setae and the shape of the spicules (Platt & Warwick, 1988).

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Morphology and Anatomy:

• Head not set off as a distinct cephalic capsule
• Cuticle only finely striated
• Amphid is surrounded by the cuticle striations.Amphideal fovea with circular outline, but spiral and loop-shaped origin obvious.
• Cephalic setae at the level of the amphids (anterior, mid- or posterior level).  Buccal cavity very small and narrow with a small dorsal tooth.
• Buccal cavity teeth absent or minute. 
• Pharynx with short, round terminal bulb.
• Somatic setae arranged in eight longitudinal rows. 
• Numerous epidermal gland cells. Conical tail.

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Distribution:

Marine nematodes inhabiting deep-sea sediments of the Campos Basin, Brazil and also from muddy polluted estuaries.

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Feeding:

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Biology and Ecology:

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Life Cycle:

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Ecosystem Functions and Services:

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Management:

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References:

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Copyright © 1999 by Howard Ferris.
Revised: November 21, 2023.