Tricoma		Contents		Rev: 06/02/2025
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Tricoma Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Desmoscolecidae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

Chromadorea

  Chromadoria

  Desmoscolecida

    Desmoscolecina

Desmoscolecoidea

     Desmoscolecidae

Subfamily: Tricominae

      

       Tricoma Cobb, 1894

Type species of the genus: Tricoma cincta Cobb, 1894

    Synonyms:
     

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Morphology and Anatomy:

	Tricoma sp.: Somatic setae (from Cesaroni et al., 2017)
Tricoma sp. head regions. Scanning electron micrographs by Shirayama and Hope, 1992.
Males:	Cuticle conspicuously annulated nwith raised rings covered with desmen (rings of sedimentary material cemented together by desmos). Lip region simple, comprised of three concentric rings surrounding the stoma. (Unlike Desmoscolex in which the lip region is complex). Ocelli may be present as yellow to brown pigment concentrations along the esophagus and/or the anterior part of the intestine.  Ref: Shirayama and Hope, 1992
Body size range for the species of this genus in the database - Click:

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Distribution:

Marine nematodes, reported from coral reefs; all taxa are marine.

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Feeding:

Food Sources and Feeding strategies for the genus Tricoma

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Biology and Ecology:

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Life Cycle:

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Ecosystem Functions and Services:

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Management:

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References:

Cesaroni, L. Guidi, L., Balsamo, M., Semprucci, F. 2017. Scanning electron microscopy in the taxonomical study of free-living marine nematodes. Microscopie 28:6970

Decraemer, W. 1978. Morphological and taxonomic study of the genus Tricoma Cobb (Nematoda : Desmoscolecida), with the description of new species from the Great Barrier Reef of Australia. Australian Journal of Zoology Supplementary Series 26(55) 1-121.

Shirayama, Y. and Hope. W.D. 1992. Cephalic tubercles: a new character useful for the taxonomy of Desmoscolecida (Nematoda). Trans. Am. Microscop. Assoc: 111:211-222..

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