Desmodora porosum		Contents		Rev: 01/01/2024
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Desmodora Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Desmodoridae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

Chromadorea

  Chromadoria

   Desmodorida

Desmodorina

             Deamodoroidea

                Desmodoridae

Desmodorinae

       Desmodora porosum Moura, Da Silva & Esteves, 2014

    Synonyms:
      

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Morphology and Anatomy:

• Body cylindrical and robust.
• Cuticle distinctly striated with wide spaces between striae in  the pharyngeal region.
•  Lateral differentiation absent.
• Six longitudinal rows of sensilla, distributed symmetrically along body and irregularly in caudal region. Setae in anterior region longer than on rest of body.
• Sclerotized head capsule.
•  Six inner labial setae;, sixouter labial setae anterior to amphid, and four cephalic setae. Subcephalic setae absent.
• Buccal cavity with one dorsal tooth and smaller subventral tooth.
• Pharynx muscular and cylindrical with developed endbulb.
•  Nerve ring at 69% of total pharynx length from anterior end.
• Short cardia between pharynx and intestine.

	Bars = 50um Drawings adapted from Moura et al., 2014	Females: Dimorphism in shape of multispiral fovea amphidia occupying 37% of body diam. Didelphic, amphidelphic, ventral to intestine. Cuticularized vagina vera and vagina uterina with sphincter muscle. Vulva a broad, transverse slit at mid-body. Spermatheca with globular sperm.  Tail conical, with terminal spinneret.
Desmodora porosum Male	Desmodora porosum Male pharyngeal region, amphid and buccal teeth
Males:   Amphids closed loop-shaped, extending entire length of the head capsule, occupying 52% of corresponding body diameter,.surrounded by irregularly arranged pores (giving rise to species name). Monorchic with globular sperm cells Spicules arched with developed capitulum and broad velum Gubernaculum laminar, without apophysis, Ventral ala in pre-cloacal region. One papilliform pre-cloacal supplement Tail conico-cylindrical with three caudal glands extending dorsally and a spinneret. Ref: Moura et al., 2014
Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

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Distribution:

Collected from sediment samples at 400 meters depth off the coast of Rio de Janeiro, Braxil.

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Feeding:

Free-living marine nematodes from ocean depths. Probably epistrate feeders with scraping tooth in stoma  (Heip et al., 1998; Tchesunov, 2015)

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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:

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Copyright 1999 by Howard Ferris.
Revised: January 01, 2024.