Metacyatholaimus

Metacyatholaimus	Contents	Rev: 07/11/2024
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Metacyatholaimus Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Cyatholaimidae Menu	Feeding	References
	Go to Nemaplex Main Menu	Go to Dictionary of Terminology

Classification:

Chromadorea
Chromadoria
Chromadorida: Chromadorina
Chromadoroidea
Cyatholaimidae: Cyatholaiminae
Metacyatholaimus Schuurmans-Stekhoven, 1942
Type species of genus: Metacyatholaimus hirschi Schuurmans-Stekhoven, 1942

Synonyms:

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Morphology and Anatomy:

Body slender, cylindrical, attenutaed at extremities
Cuticle striated, punctated, with 3 to 5 rows of lateral punctation or a hetergeneous field of 3-12 punctations.
Lateral alae present, each of two ridges, along whole body length. Between the two ridges, a row with campanifornm organs
Head with six indistinct labial papillae, 10 oter lablal and cephalic setae (6+4)
Buccal cavity small with small dorswel toothe and 1-2 ventral teeth.
Amphid fovea spiral with 4-5 turnes, or circular
Pharynx with terminal; bulb inconspicuous\Tail conical elongate

Females:

Didelphic, amphidelphic, ovaries reflexed
Somatic setae absent

Ref: Vidakovic et al., 2003

Males:

Diorchic, testes opposed, outstretched
Precloacal supplements present or absent
Males with somatic setae

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

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Distribution:

Reported from Adriatic Sea at 4 to 47m depth in sediment

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Feeding:

Probably epistrate feeders

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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:

Schuurmans-Stekhoven, J.H. 1942. The free-living nematodes of the Mediterranean. III. the Balearic Islands. Zoologische Mededelingen 23:229-162.

Vidakovic, J., Travizi, A., Boucher, G. 2003. Two ne speecies of the genus Metacyatholaimus (Nematodea, Cyatholaimidae) from the Adriatic Sea with a key to the species. Cah. Biol. Mar 44:111-120.

Wieser, W. 1953. Die Beziehungzwischen Mundhhlengestalt, Emhrungsweise und Vorkommenbeimarinen Nematoden. Arkive Zoologie, 4: 439-484.

Metacyatholaimus

Copyright © 1999 by Howard Ferris. Revised: July 11, 2024.

Copyright © 1999 by Howard Ferris.
Revised: July 11, 2024.