Geraldius		Contents		Rev 01/13/2025
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Geraldius menu				Ecosystem Functions and Services
		Distribution		Management
Return to Chambersiellidae menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

      Chromadorea
        Rhabditida
         Rhabditia

Cephalonina

Panagrolaimoidea
          Chambersiellidae

Chambersiellinae

                Geraldius  Sanwal, 1971

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Morphology and Anatomy:

Lip region with six cephalic cirri (elaborate cephalic appendages) and 6-10 cephalic papillae. Didelphic females.

Female diovarial.

Scanning electron micrographs of Geraldius (female anterior and male posterior) Images by Ignacio Cid del Prado

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Distribution:

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Feeding:

Bacterial feeder.

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Biology and Ecology:

Nematodes in the Chambersiellidae are frequently reported in assocaiation with bark beetles.  The relationships are probably phoretic in that the nematodes are transported from tree to tree or to insect galleries by the beetles.

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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: January 13, 2025 .