Pselionema mirabile		Contents		Rev: 10/30/2024
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Pselionema Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Ceramonematidae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

Chromadorea

  Chromadoria

       Plectida

Ceramonematoidea

            Ceramonematidae

   Pselionematinae

       Pselionema mirabile Tchesunov & Miljutina 2002

 

   Synonyms:

     

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Morphology and Anatomy:

• Body cuticle consists of 206 annules between cephalic capsule and terminal cone:; annules broad and 1.5-2 um thick; no intracuticular vacuoles.
• Six longitudinal cuticular crests extended along the body from posterior region of cephalic capsule to base of terminal cone. Each crest consists of short ridges on every annule; ridges at both ends slightly overlapped with ridges of adjacent anterior and posterior annules.
• Zygapophyses well developed, sinusoid, smooth.
• Cephalic capsule nearly cylindrical, slightly narrowed anteriorly; no pores on cephalic capsule.
• Four cephalic setae situated apically, 14 um long; no other setae on the body, except on the tail.
• Amphid loop-shaped, situated on posterior half of cephalic capsule. Amphid dorsal branch 11 um and ventral branch 15 um long; No cuticular thickening between amphid branches.
• Buccal cavity not developed.
• Pharynx subdivided into three regions: anterior muscular region 23 um long, widened anteriorly; intermediate region narrowed and obscured by neuron cell bodies; posterior region pear-shaped widening with transverse striation.
•  Nerve ring evidently at anterior end of intermediate region of pharynx, at the level of 10-12th annules.
• Renette extending from 18th to 24th body annules, with excretory pore situated at 18th annule.
• Tail conical, 11 abd long. Terminal cone 23 um long. Six lateroventral setae 6.5-7.5 um long on each side of tail.

Tchesunov and Miljutina (2002)

Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

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Distribution:

Described from White Sea, Gorlo Strait Russia:  depth 20 m, coarse sand with broken shells.

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Feeding:

Epistrate

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Biology and Ecology :

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Life Cycle:

Ecophysiological Parameters:

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Ecosystem Functions and Services :

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Management:

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References:

Swart A., Heyns, J., Furstenberg, J.P. 1992. Studies on Pselionema Cobb, 1913. Description of Pselionema mirabile n. sp. (Nematoda: Haliplectidae, Suborder Leptolaimina). A. African. J. Zoology 27: 41-44.

Copyright © 1999 by Howard Ferris.
Revised: October 30, 2024.