Globocephalonema

 

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Rev 12/17/2024

  Classification Hosts
Morphology and Anatomy Life Cycle
Return to Globocephalonema Menu Economic Importance Damage
Distribution Management
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Classification:

Chromadorea
Rhabditida
       Tylenchina
        Drilonematoidea
             Drilonematidae
Iponematinae

          Globocephalonema Anand & Rao, 1987

Type species of the genus:  Globocephalonema krishnanii Anand & Rao, 1987

Synonyms:
    

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Morphology and Anatomy:

.
  • Four small cephalic papillae.
  • Buccal cavity long
  • Amphids deep, pocket-like, with a rim, situated 1.5-2.5 head diam. from anterior end.
  • Pharynx clavate, long, 1/8-1/7 of body length.
  • Nerve ring at mid-pharynx.
  • Excretory pore just posterior to nerve ring.
  • Excretory duct long, strongly cuticularised.
  • Symmetrical circular to elliptical caudal organs in both sexes.

Female:

  • Vulva posterior to mid-body(68-88%).

Male:

Based on the position of the vulva, postmedian rather than anterior to or at mid-body, and more posterior amphids, longer pharynx and other characters. Ivanova and Neusaus (2011) moved former Iponema species hyderabadense, krishnanii, and timmae to a restored genus Globocephalonema Anand & Rao, 1987.

Ref: Ivanova and Neuhaus, 2011.
Body size range for the species of this genus in the database - Click:
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Distribution:

 

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Economic Importance:

 

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Feeding:

      Parasites of the coelomic cavity of annelids.

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Hosts:
For an extensive host range list for this genus, click
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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:

Anand, L.R. and Rao, P.N. 1987. Globocephalonema krishnanii gen. n., sp. n. (Nematoda: Drilonematidae) from Hyderabad. Indian Journal of Nematology 16:168-170.

Ivanova, E. and Neuhaus, B.  2011. A revision of the Iponematinae (Nematoda: Drilonematoidea) with description of three new species parasitic in tropical earthworms. Nematology 13:639-652.

Poinar, G.O. 1978. Associations Between Nematodes (Nematoda) and Oligochaetes (Annelida). Proc. Helminthol. Soc. Wash. 45:202-210.

Timm, R.W. 1967. Nematode parasites of the coelomic cavity of earthworms VII. Four new genera and thirteen new species of the family Drilonematidae. Pak. J. Biol. Agric. Sci. 10: 1-12.

Timm, R.W, and Maggenti, A.R. 1966. Nematode parasites of the coelomic cavity of earthworms. V. Plutellonema, Globocephalonema , and Filiponema , new genera (Drilonematidae). Proc. Helminth. Soc. Wash. 33:177-184.

 

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Copyright 1999 by Howard Ferris.
Revised: December 17, 2024.