Onepumanema

Onepunema	Contents	Rev: 08/10/2026
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Onepunema 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
Desmodoroidea
Desmodoridae
Desmodorinae

Onepunema Leduc & Verschelde, 2013

Type species of the genus: Onepunema enigmaticum Leduc & Verschelde, 2013

Synonyms:

Morphology and Anatomy:

General characteristics of the genus

Body cylindrical with blunt head region.
Cuticle thick, annulated, with annuli extending from posterior edge of amphideal aperture to near the tail tip.
Longitudinal rows of pores distinct but somatic setae hardly distinguishable in the pharyngeal region, and totally absent along the rest of the body except for the tail region where there may be a few pairs of pre-, para-, and/or postcloacal somatic setae.
Head capsule striated, separated into labial and main head regions.
Six outer labial setae located close to four cephalic setae at junction of labial and main head regions.
Amphideal fovea cryptocircular, surrounded by fine striation .
Buccal cavity small, teeth inconspicuous, probably absent.
Pharunx slender with conspicuous rounded terminal bulb, not partitioned.
Short conical tail with spinneret.

Females:

Didelphic-amphidelphic,
Vulva situated slightly anterior to middle of body

Males:

Diorchic, testes opposed, outstretched. (diorchic condition is unique in the superfamily Desmodoroidea)
Spicules short, arcuate.
Gubernaculum complex, arcuate,
Four or five pre-cloacal supplements present

Ref: Leduc and Verschelde, 2013

Body size range for the species of this genus in the database - Click:

Feeding:

Food Sources and Feeding strategies for the genus Onepunema

Probably epistrate feeders

Life Cycle:

For Ecophysiological Parameters for this genus, click

Ecosystem Functions and Services:

Leduc, D. and Verschelde, D., 2013. One new genus and two new free-living nematode species (Desmodorida, Desmodoridae) from the continental margin of New Zealand, Southwest Pacific Ocean. Zootaxa 3609 (3): 274-290

Tchesunov. A.V. 2013. 7.13 Order Desmodorida de Coninck, 1965 In Schmidt-Rheas and de Gruyter, W. Handbook of Zoology.Gastrocticha, Cycloneuralia, Gnatifera. Volume 2: Nematoda

Onepunema

Contents

Classification:

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Morphology and Anatomy:

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Distribution:

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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: August 10, 2026.

Onepunema

Copyright © 1999 by Howard Ferris. Revised: August 10, 2026.

Copyright © 1999 by Howard Ferris.
Revised: August 10, 2026.