Mesotheristus		Contents		Rev: 03/03/2025
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Mesotheristus Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Xyalidae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

Chromadorea

  Chromadoria

   Monhysterida

Monhysterina

Sphaerolaimoidea

                 Xyalidae

       Mesotheristus Wieser, 1956

Type species of the genus: Mesotheristus setosus (Butschli, 1874) Wieser, 1956

    Synonyms:
     

Back to Top

Morphology and Anatomy:

• Lateral alae present
• Coarse striations, 2mu wide;interrupted laterally by distinct lateral alae, 8-10 mu wide at mid-body,
•  Head with six labial papillae and 12 (6+6) cephalic setae,
• Cervical setae up to 25 mu long; Sublateral somatic setae up to 30 mu long, arranged in longitudinal rows along margins of lateral alae; other somatic sctae fine, up to 15 mu long.
• Amphids circular to somewhat oval,
•  Tail 245-278 mu long (4.3-4.9 abd), anterior two-thirds conoid, posterior third cylindrical. Two terminal setae about 20 mu long and two others about 4 mu long.

Back to Top

Distribution:

Marine nematodes. widespread distribution: northern Europe and Scandinavia, North An\merica, Iceland, Brazil, Australia

Back to Top

Feeding:

Microbes in epistrate.

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. 2005. Free-living Nematodes of Hungary, I (Nematoda errantia). Pedozoologica Hungarica 3. Hungarian Natural History Museum, Budapest, Hungary. 518p.

Hoppere, B.E. 1969. Marine nematodes of Canada. II. Marine nematodes from the Minas Basin - Scots Bay area of the Bay of Fundy, Nova Scotia . Can. J. Zool. 47:671-690.

Back to Top

Copyright © 1999 by Howard Ferris.
Revised: March 03, 2025.