Xenocyatholaimus delamarei

Xenocyatholaimus delamarei	Contents	Rev: 02/20/2026
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Xenocyatholaimus Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Cyatholaimidae Menu	Feeding	References
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Chromadorida

Chromadorina

Chromadoroidea

Cyatholaimidae

Xenocyatholaiminae

Xenocyatholaimus delamarei Gerlach, 1953

Type species of the genus.

Synonyms:

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Morphology and Anatomy:

Cuticle with transverse striae, only with punctated ornamentation anterior to the amphideal fovea and on tail; ten longitudinal ridges present.
Six outer labial setae and four cephalic setae arranged in a single circle, the four cephalic setae being shorter than six outer labial setae.
Amphideal fovea multispiral, located and about one head width from anterior end.
Buccal cavity large, with large pointed dorsal tooth. .

Males:

Precloacal supplements absent;
Gubernaculum small

Females:

Didelphic, amphidalphic; ovaries reflexed

Ref: Tchesunov, 2013

Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

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Distribution:

Free-living marine nematodes

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Feeding:

Probably epistrate feeders

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Biology and Ecology:

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Life Cycle:

Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click	If species level data are not available, click for genus level parameters

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Ecosystem Functions and Services:

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Management:

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References:

Tchesunov, A.V. 2013. 7.12 Order Chromadorida Chitwood, 1933. In Schmidt-Rheas and de Gruyter, W. Handbook of Zoology.Gastrocticha, Cycloneuralia, Gnatifera. Volume 2: Nematoda