Afractinolaimus

Afractinolaimus	Contents	Rev 06/24/2023
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Afractinolaimus Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Actinolaimidae Menu	Feeding	References
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Afractinolaimus Andrassy, 1970

Type species of the genus: Afractinolaimus magaliesmontanus (Heyns & Argo, 1969) Vinciguerra & Heyns, 1984

Synonyms:

Afractinolaimus noblei Andrassy, 1970

Morphology and Anatomy:

Body size large, variable: 2.5 - > 4 mm.
Odontostyle strong, not dorsally fused.
Guiding ring double.
Four large onchia and many denticles present in oral cavity, more or less arranged in transverse rows.
Tail different in the two sexes: elongate-conoid to filiform in females, short and bluntly rounded in males.

The genus Afractinolaimus differs from Paractinolaimus Meyl, 1957, which has a similar stomal structure, in the arrangement of the supplements, which are not grouped in fascicles in Paractinolaimus

Female:

Didelphic-amphidelphic.
Gonads very long, sometimes with multiple flexures
Tail elongate-conoid to filiform

Ref: Vinciguerra and Heyns, 1984; Andrassy, 1970.

Males:

Supplements arranged in two fascicles.
Tail short and bluntly rounded.

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

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Distribution:

Freshwater nematodes, reported from South Africa.

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Feeding:

Categorized by Yeates et al (1993) as omnivore and predator.

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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:

Andrassy, l. 1970. Nematodes from some river systems in South Africa. Opusc. Zool. Bpest 10: 179-219.

Andrassy, I. 2009. Free-living Nematodes of Hungary III. Hungarian Natural History Museum, Budapest. 608p.

Pena-Santiago, R. 2021. Dorylaimida Mundi (Nematoda); checklist of genera and species, with their records. UJA Editorial. 957p.

Vinciguerra, M.T. and Heyns, J. 1984. Freshwater nematodes from South Africa. 8. New and known species of Actinolaimoidea, South African Journal of Zoology, 19:3, 135-140, DOI: 10.1080/02541858.1984.1144787

Yeates, G.W., T. Bongers, R. G. M. De Goede, D. W. Freckman, and S. S. Georgieva. 1993. Feeding habits in soil nematode families and genera—An outline for soil ecologists. Journal of Nematology 25:315-331