Dolichodera fluvialis




Rev 10/31/2023

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Morphology and Anatomy Life Cycle
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           Dolichodera fluvialis Mulvey & Ebsary, 1980

Type species of the genus.


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Morphology and Anatomy:



  • Elongate-oval with protruding neck. Body length excluding nect >2x body width
  • Cuticle with irregular striae
  • Stylet slender
  • Vulval area circumfenetrate
  • Anus small without fenestra.


  • Elongate-oval with long rotruding neck.
  • Cuticle very thin
  • Vulval area circumfenetrate and sevesal large bullae present.



  •  Male unknown


Second-stage juveniles:

  • Generally typical of Heteroderidae.
  • Lateral field with three incisures
  • Stylet slender, knobs anteriorly concave
  • Excretory pore about 1 body width posterior to level of medaian bulb.
  • Tail long, terminus narrowly rounded. 
  • Phasmids minute, 1 body widthe posterior to anus.

    Ref: Subbotin et al.,(2010)

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


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Recovered from a bottom sediment sample from the Ottawa river, Quebec, Canada. The species appeared to differ from all other genera of the family.  It was assigned to a new genus by Mulvey and Ebsary, 1980. Subsequent sampling revealed the type host as  Spartina pectinata (Ebsary and Eveleigh, 1993).

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Economic Importance:


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Spartina pectinata

For an extensive host range list for this species, click

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Life Cycle:

Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click If species level data are not available, click for genus level parameters
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Host Plant Resistance, Non-hosts and Crop Rotation alternatives:

For plants reported to have some level of resistance to this species, click


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Ebsary, B.A. and Eveleigh, E.S. 1983 Meloidogyne aquatilis n.sp. (Nematoda: Meloidogynidae) from Spartina pectinata with a key to the Canadian species of Meloiodogyne. Journal of Nematology 15:349-353.

Mulvey, R.H. and Ebsary, B.A. 1980.. Dolichodera fluvialis  n. gen,. n.sp. (Nematode: Heteroderidae) from Quebec, Canada. Canadian J. Zoology 58:1697-1702.

Subbotin, S.A., Mundo-Ocampo, M., Baldwin, J.G. 2010. Systematics of Cyst Nematodes (Nematode: Heteroderinae). Nematology Monographs and Perspectives Volume 8A , D.J. Hunt and R.N. Perry (eds) Brill, Leiden, The Netherlands 351p

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Copyright © 1999 by Howard Ferris.
Revised: October 31, 2023.