Chitwoodius

Chitwoodius	Contents	Rev 05/02/2025
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Chitwoodius Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Tylencholaimidae Menu	Feeding	References
	Go to Nemaplex Main Menu	Go to Dictionary of Terminology

Classification:

Enoplea

Dorylaimia
Dorylaimida

Tylencholaimidae

Tylencholaiminae

Chitwoodius Furstenberg & Heyns, 1966

The generic name was originally proposed as Chitwoodia but since that name was already occupied, the name was changed to Chitwoodius (Furstenberg & Heyns, 1966a, 1966b).
The generic name is, of course, in honor of pioneering nematologist Benjamin Chitwood.

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Morphology and Anatomy:

The genus Chitwoodielloides differs from Chitwoodius in having a more attenuated odontostyle, the odontophore with a thickened base, weakly muscular anterior slender part of pharynx and the vulva a transverse slit (Ahmad and Araki, 2003)..

Medium-sized nematodes 1.20-2.50 mm long.
Cuticle tylencholaimid, with abundant and conspicuous refractive elements.
Lip region cap-like and offset by constriction.
Amphidial fovea large, cup-like.
Odontostyle tubular, up to 2.6 times lip region diam. and with small aperture.
Odontophore simple and shorter than odontostyle.
Esophagus with a weakly muscular anterior section and cylindrical basal expansion which occupies 46-60% of total esophagus length.
Female didelphic-amphidelphic, uterus a simple tube-like structure, pars refringens vaginae reduced.
Vulva usually a longitudinal slit but ocasionally pore-like.
Tail similar in both sexes, short and rounded conoid.
Spicules dorylaimoid. Seven to 13 widely spaced ventromedian supplements with or without a hiatus.

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

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Distribution:

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Feeding:

Food Sources and Feeding strategies for the genus Chitwoodius

Nematodes in the Tylencholaimidae often considered fungal feeders (Yeates et al., 1993)

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Biology and Ecology:

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Life Cycle:

For Ecophysiological Parameters for this genus, click

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Ecosystem Functions and Services:

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Management:

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References:

Ahmad, W. and Araki, M. 2003. New and known species of the family Tylencholaimidae (Nematoda: Dorylaimida) from Japan. J. Nematode Morph. and Syst. 6:1-26.

AndrÃ¯Â¿Â½ssy, I. 2009. Free-living Nematodes of Hungary III. Hungarian Natural History Museum, Budapest. 608p.

Furstenberg, J.P. & Heyns, J. (1966a). Chitwoodia transvaalensis n. gen., n. sp., and Dorylaimoides longidens n. sp.,two new nematodes from South Africa. Proceedings of the Helminthological Society of Washington 33, 26-30.

Furstenberg, J.P. & Heyns, J. (1966b). Chitwoodius nom. nov. for Chitwoodia Furstenberg & Heyns, 1966. Proceedings of the Helminthological Society of Washington 33, 165.

Hoang, H., H.H. Chu, T.A. Duong Nguyen, Q.P. Trinh, J. Abolafia and R. Pena-Santiago. 2019. Morphological and molecular characterisation of Chitwoodius coffeae sp. n. (Dorylaimida: Tylencholaimidae) from Vietnam, with a revised taxonomy of the genus. Nematology 21:509-521.

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 generaÃ¯Â¿Â½An outline for soil ecologists. Journal of Nematology 25:315-331

Chitwoodius

Copyright © 1999 by Howard Ferris. Revised: May 02, 2025.

Copyright © 1999 by Howard Ferris.
Revised: May 02, 2025.