Torquenema		Contents		Rev 10/04/2024
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Torquenema menu				Ecosystem Functions and Services
		Distribution		Management
Return to Chabertiidae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification

Phylum:  Nematoda
Class:    Chromadorea

Chromadoria

Order:    Rhabditida 

Superfamily:  Strongyloidea

Family:  Chabertiidae

Subfamily: Phascolostrongylinae

Torquenema

Type species of the genus Torquenema toraliforme (Beveridge and Mawson, 1978), Sukee, Beveridge & Jabbar, 2021

Synonyms:

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Morphology and Anatomy:

• Robust nematodes.
• Cephalic collar large, disc-shaped, extending peripherally beyond body; collar pierced by four sub-conical, sub-median papillae and two lateral amphids;
• Mouth opening circular; buccal capsule sub-cylindrical, heavily sclerotised; anterior extremity with about.25 triangular projections forming leaf crown.
• Teeth absent in buccal capsule, duct of dorsal oesophageal gland pierces wall of buccal capsule at mid-length, divides internally to form Y-shaped dorsal gutter.
• Esophagus clavate; nerve ring in anterior third of oesophagus;
• Deirid papillate, posterior to nerve ring; excretory pore at same level as deirid. 
  

• Male: Spicules elongate,. alate

  Female: Vulva immediately anterior to anus; Ovejector Y-shaped; eggs ellipsoidal.

Ref: Sukee et al., 2021

Torquenema toraliforme. a: anterior, lateral view; b: cephal;ic collare and buccal capsule, dorsal and lateral views. Scale bars: a: 100 um; b: 10 um Drawings from Sukee et al., 2021

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

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Distribution

Reported in  macropodid marsupials in Victoria, Australia

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Economic Importance:

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Hosts:

Parasitic in the intestine of Macropus giganteus (Eastern Grey Kangaroo)..

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Feeding

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Life Cycle:

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Damage:

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Management:

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References:

Sukee, T.; Beveridge, I.; Jabbar, A. 2021. Torquenema n. g., Wallabicola n. g., and Macropostrongyloides phascolomys n. sp.: New Genera and a New Species of Nematode (Strongylida: Phascolostrongylinae) Parasitic in Australian Macropodid and Vombatid Marsupials. Animals 2021, 11, 175. https://doi.org/ 10.3390/ani11010175

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