Monoposthia		Contents		Rev 08/24/2026
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Monoposthia Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Monoposthiidae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

 Classification:

Chromadorea

  Chromadoria

   Desmodorida

Desmodorina

             Monoposthioidea

   Monoposthiidae

    Monoposthia de Man, 1889

Type species of the genus: Monoposthia costata (Bastian, 1865) de Man, 1889

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Morphology and Anatomy:

• Thick coarsely annulated cuticle; annules slightly overlapping to anterior in anterior half of body, overlapping to posterior in posterior half.

• Longitudinal rows of cuticular notches and ridges.

• Longitudinal alae throughout the body.

• Anterior sensilla in 6+6+4 asrrangement, labial circles papilliform; cephalic circle setiform.

• Amphidial fovea circular

• Tail conical


Marine.

Males:

• Monorchic
•  Spicules lacking; reduced or absent
• Gubernaculum solid, unpaired, canoe-shaped, slightly protrusible

Females:

• Monodelphic, prodelphic

Ref: Tchesunov, 2013; Huang and Guo, 2022

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Distribution:

Free-living marine nematodes. Reported from intertidal sandy sediment in East China Sea.

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Feeding:

Food Sources and Feeding strategies for the genus Monoposthia

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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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Revisef by Howard Ferris: August 24, 2026.