Utahnema		Contents		Rev 04/04/2025
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Utahnema Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Leptonchidae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

Type species of the genus: Utahnema tenuidens Thorne, 1939

 Back to Top

Morphology and Anatomy:

• Body length < 1mm
• Lip region offset, rounded
• Odontostyle straight, distince lumen, about 2x lip width long
• Odontophore rod-like
• Expanded portion of esophagus about 25% of esophagus length, pyiriform
• Tail short, slightly digitate

Utahnema os close to Xiphinemella on the basis of the elongate, rodlike odontophore but lacks flanges at the odontophore base. of the spear extension. Consequently, Siddiqi (1966) placed Utahnema in the Leptonchidae.

Back to Top

Distribution:

Soil nematodes; species reported from Europe, Asia and North America

Feeding:

Possible plant or fungal feeding, long slender odontophore.

Back to Top

Biology and Ecology:

Back to Top

Life Cycle:

Back to Top

Ecosystem Functions and Services:

Back to Top

Management:

Back to Top

References:

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

Siddiqi, M.R. 1966. Studies on the Genera Calolaimus Timm, Galophinema Siddiqi, Qudsianema Jairajpuri, and Utahnema Thorne (Nematoda: Leptoncllidae), with Description of U. gracile n. sp. Proc. Helminthol. Soc. Washington. 33:157-162.

Thorne, G. 1939. A monograph of the nematodes of the superfamily Dorylaimoidea. Capita Zool. 8: 1-263.

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.

Back to Top

Copyright © 1999 by Howard Ferris.
Revised: April 04, 2025.