Odontobius		Contents		Rev: 11/19/2024
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Odontobius Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Monhysteridae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

Chromadorea

  Chromadoria

   Monhysterida

Monhysterina

Monhysteroidea

            Monhysteridae

Diplolaimellinae

       Odontobius Roussel de Vauzeme, 1834

Type species of the genus:  Odontobius ceti Roussel de Vauzeme, 1834

    Synonyms:
     

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Morphology and Anatomy:

Members of the subfamily Diplolaimellinae of the Monhysteridae are characterized by a double buccal cavity at some point during their juvenile or adult stages, while those in the other subfamily, the Monhysterinae, have a single tapered buccal cavity.

• Medium to long nematodes (0.7-4mm)
• Inner labial sensilla papilliform, outer labial and cephalicsensilla in a single circle
• Amphids circular
• Ocelli present or absent
• Buccal cavity funnel-shaped; posterior chamber with or without denticles
• Pharynx cylindrical
• Ventral glland well-developed
• Tail conoid to subcylindrical
• Caudal glands open via spinneret

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Distribution:

Within the Monhysteriadae, Odontobius appears to be most closely related to Gammarinema, species of which live externally on peracarid and decapod crustaceans (Lorenzen, 1985..

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Feeding:

The genera Odontobius, Gammarinema  Monhystrium  and Tripylium are exclusively commensally epibiotic and numerous groups of crustaceans are the most common hosts for free-living nematodes (Holovachov et al., 2011).

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Biology and Ecology:

Life Cycle:

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Ecosystem Functions and Services:

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Management:

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References:

Lorenzen, S. 1985. Odontobius (Nematoda, Monhysteridae) from the baleen plates of whales and its relationship to Gammarinema living on crustaceans Zoologica Scripta 15:101-106.

Roussel de Vauzeme D.M. 1834. Note sur l'Odontobius ceti de l'ordre des vers intestinaux cavitaires. Annales des Sciences Naturelles 1:326-331.

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Copyright © 1999 by Howard Ferris.
Revised: November 19, 2024.