Chrysonema

Chrysonema	Contents	Rev 04/11/2023
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Chrysonema Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Chrysonematidae Menu	Feeding	References
	Go to Nemaplex Main Menu	Go to Dictionary of Terminology

Classification:

Enoplea

Dorylaimia
Dorylaimida

Chrysonematidae

Chrysonematinae

Chrysonema Thorne, 1929

Type species of the genus: Chrysonema aurum Thorne, 1929

Synonyms

Chrysonemoides Siddiqi, 1060

Morphology and Anatomy:

Very slender nematodes 1-3 mm long.
Cuticle smooth to finely striated, thin
Lip region continuous with body contour.
Odontostyle thin, slightly longer that lip width, small aperture.
Thin guiding ring.
Esophagus expending just before middle.
Tail elongate conoid; c' = 4-8, curved ventrally; similar in both sexes.

Ref: Andrássy, 2009

Chrysonema attenuatum: B: Entire male; C: Female anterior; D: Female anterior, amphid; E: expanded region of female esophagus; F: Female anterior gonmad.
Modified from Ahmad and Shaheen, 2005

Female:

Female diovarial, amphidelphic.

Males:

Shorter than female
6-9 ventomedian supplements

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

Feeding:

Categorized as omnivores by Yeates et al., 1993

Life Cycle:

Ecophysiological Parameters:

For Ecophysiological Parameters for this genus, click

Ecosystem Functions and Services:

References:

Ahmad, W. Shaheen, A. 2005. A new and known species of the genus Chrysonema Thorne, 2005. (Nematoda, Dorylaimida) from Costa Rica. Nematol. Medit. 33:55-60.

Andrassy, I. 2009. Free-living Nematodes of Hungary III. Hungarian Natural History Museum, Budapest. 608p.

De Man G., 1880. Die einheimischen, frei in der reinen Erde und im sï¿½ssen Wasser Lebenden Nematoden. Tijdschrift nederlandsche dierkundige Vereeniging, 5: 1-104.

Siddiqi, M.R. 1969. Crateronema n. gen. (Crateronematidae n. fam.), Poronemella n. gen. (Lordellonematinae n. sub-fam.) and Chrysonemoides n. gen. (Chrysonematidae n. fam. ), With a Revised Classification of Dorylaimoidea (Nematoda). Nematology 15:81-100.

Yeates, G.W., T. Bongers, R. G. M. De Goede, D. W. Freckman, and S. S. Georgieva. 1993. Feeding habits in soil nematode families and genera—An outline for soil ecologists. Journal of Nematology 25:315-331

Chrysonema

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: April 11, 2023.

Chrysonema

Copyright 1999 by Howard Ferris. Revised: April 11, 2023.

Copyright 1999 by Howard Ferris.
Revised: April 11, 2023.