Amphicephaloides

Amphicephaloides		Contents		Rev: 05/12/2026
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Amphicephaloides Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Herpetostrongylidae Menu		Feeding		References
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Classification:

Chromadoria
Rhabditida: Rhabditina
Infraorder Rhabditomorpha
Heligmosomoidea: Herpetostrongylidae
Globocephaloidinae

Amphicephaloides Beveridge, 1979
Type species of the genus: Amphicephaloides thylogale Beveridge, 1979

Synonyms:

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Morphology and Anatomy:

Small coiled nematodes.
Oral opening slit-like, bounded by 2 lateral, jaw-like structures.
Buccal capsule elongate, sub-divided; anterior part urceolate, thin-walled; posterior part subcylindrical, thick-walled.
Single dorsal tooth arises from esophagus.
Esophagus elongate clavate.

Females:

Vulva posterior to mid-body region.
Amphidelphic. Vagina with paired ovejectors; vaginae uterinae short; uteri opposed.
Tail bidigitate.
Egg ellipsoidal, thin-shelled.

Ref: Beveridge, 1979

Males:

Bursa well developed, lateral lobes fused with ventral lobes; dorsal lobe reduced. Ventroventral and ventrolateral rays separate, lateral rays subequal; exter-nodorsal ray arises from base of dorsal ray; dorsal ray short, slender.
Spicules short, similar, heavily sclerotized, complex, subdivided distally.
Gubernaculum present.

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

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Distribution:

Australia, Tasmania

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Feeding:

Food Sources and Feeding strategies for the genus Amphicephaloides

Type species a parasite of the duodentu of the rufous-bellied or Tasmnaina pademelon (Thylogale sp.)

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Biology and Ecology:

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Life Cycle:

For Ecophysiological Parameters for this genus, click

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Ecosystem Functions and Services:

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Management:

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References:

Beveridge, I. 1979. A Review of the Globocephaloidinae Inglis (Nematoda : Amidostomatidae) from Macropodid Marsupials. Aust. J. Zool. 27:151-175.

Copyright © 1999 by Howard Ferris.
Revised: May 12, 2026.