Viscosia

Viscosia		Contents		Rev 08/26/2024
		Classification		Hosts
		Morphology and Anatomy		Life Cycle
Return to Viscosia Menu		Economic Importance		Damage
		Distribution		Management
Return to Oncholaimdae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

Enoplida
Oncholaimoidea
Oncholaimidae: Oncholaimellinae

Viscosia Ditlevsen, 1928(?)

Synonyms:

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Morphology and Anatomy:

Cuticle smooth
Head flattened
Outer labial and cephalic sensillae are short setae
Stoma athick-walled cylinder, 2.0-2.2 times as long as it is wide with three teeth; of which the right subventral tooth is considerably larger than dorsal and left subventral.
Amphid apertures are 40-50% the body diameter and situtated at level of posterior half of stoma.
Esophagus muscular with cardia small, protruding into mid gut lumen.
Renette cell elongate-cylindrical, 30-35 um long, situated ventrally 90-120 um from posterior end of esophagus with the excretory pore located posterior to nerve ring.
Freshwater and marine nematodes.

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Female:

Didelphic, amphidelphic

Male:

Spicules slightly curved, with small heads.
Gubernaculum absent.
Spinneret a short cone.

Ref: Gagarin and Nguyen, 2008

Viscosia timmi
Female (1, 6) and male (2, 5). 1, 2, body shape; 3, head; 4 anterior portion of body; 5, 6 tail region
from Gagarin and Nguyen, 2008

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

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Distribution:

Free-living freshwater and marine nematodes.in bottom sediments.

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Economic Importance:

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Feeding:

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Life Cycle:

For Ecophysiological Parameters for this genus, click

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Damage:

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Management:

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References:

Coomans, A., Vincx, M., Decraemer, W. 1985. Nematodes from a fresh-water pool on a coral island in the Solomon Islands. Hydrobiologia 123:265-281.

Gagarin, V.G., Nguyen, T.T. 2008. Free-Living Nematodes from the Red River Delta, Vietnam. Biologiya Vnutrennikh Vol 1:12-17.

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Copyright 1999 by Howard Ferris.
Revised: August 26, 2024.