Amphimonhystrella

Amphimonhystrella		Contents		Rev: 04/15/2025
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Amphimonhystrella 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
Amphimonhystrella Timm, 1961

Type species: Amphimonhystrella megastoma Timm, 1961

Synonyms:

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Morphology and Anatomy:

Very small body <0,5mm, slender
Cuticle striatedor smooth, without lateral differentiation.
Cephalic crown composed of ten (6+4) smooth setae
Scarce cervical and somatic setae along the body.
Amphid large, round or slightly longitudinally oval.
Esophastome elongate conical to near cylindroid, with sclerotised rhabdions, surrounded by esophageal collar.
Esophagus slightly widening posteriorly but no terminal bulb..

Females:

Monodelphic, prodelphic with postvulvar sac

Ref: Timm, 1961; Tchesunov and Miljutina, 2005;

Males:

Diorchic or monorphic, testes reflexed.ior outstretched
Spicules small, slightly bent.
Gubernaculum with or without small dorso-caudal apophysis.
Tail consists withconical and distal cylindrical portions ending with terminal drop-shaped expansion.

Body size range for the species of this genus in the database - Click:

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Distribution:

Free-living deep sea nematodes

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Feeding:

Food Sources and Feeding strategies for the genus Amphimonhystrella

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Biology and Ecology:

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Life Cycle:

For Ecophysiological Parameters for this genus, click

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Ecosystem Functions and Services:

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Management:

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References:

Tchesunov, A.V., and Miljutina, M. 2005. Three new minute nematode species of the superfamily Monhysteroidea from Arctic Abyss. Zootaxa 1051: 19-32

Timm, R.W. 1961. The marine nematodes of the Bay of Bengal. Proceedings of Pakistan Academy of Sciences,1:1-88

Copyright © 1999 by Howard Ferris.
Revised: April 15, 2025.