Aporcelaimellus obtusicaudatus

Aporcelaimellus obtusicaudatus	Contents	Rev 01/16/2021
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Aporcelaimellus Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Aporcelaimidae Menu	Feeding	References
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Classification:

Enoplea

Dorylaimia
Dorylaimida

Aporcelaimidae

Aporcelaimellus obtusicaudatus (Bastian, 1865) Altherr, 1968

The type species of the genus Aporcelaimellus Heyns, 1965

Synonyms:

Aporcelaimellus obscurus

Morphology and Anatomy:

Body length 1.5-3.5 mm..
Cuticle of two layers differing in refraction; the outer layer transparent and the inner layer less transparent..
Cervical lacunae usually well developed.
Labial region 17-23 µm wide, offset from body contour by a deep constriction.
Odontostyle 19-26 µm long with aperture 59-72% of its length.
Odontophore straight, rod-like, about the same length as the odontostyle.
Enlarged portion about 48-59% of total length of esophagus; separated from intestine by a cardia.
Tail short and rounded to conical with rounded base; inner layer of cuticle usually thicker at tail..

Ref: Aï¿½lvarez-Ortega & Pena-Santiago (2012)

Representative lip regions and tail regions of Aporcelaimellus obtusicaudatus.

Photographs from AÂlvarez-Ortega & Pena-Santiago (2012) .

Female:

Female gonad diovarial, amphidelphic; vulva transverse, at 43-58% of body length.-
Intermediate part of vaginal canal with well-developed sclerotized pieces - pars refringens vaginae.

Males: With 7-14 irregularly-spaced ventromedian supplements.

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

Worldwide distributed; reported from more than 50 countries or territories. According to Andrassy (2009), it "might be the most common soil nematode species" (Presumably he was referring to the subset of nematodes in the Dorylaimida).

The type locality is Falmouth, England.

Feeding:

Categorized as predators and omnivores (Yeates et al., 1993; Wood, 1973)

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Biology and Ecology:

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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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Ecosystem Functions and Services:

Regulation of opportunistic species.

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Management:

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References:

AAÂlvarez-Ortega, S., Pena-Santiago, R. 2012. Studies on the genus Aporcelaimellus Heyns, 1965 (Dorylaimida, Aporcelaimidae). Morphological and molecular characterization of Iberian A. obtusicaudatus (Bastian, 1865) Altherr, 1968, with an updated diagnosis of the species. Journal of Nematode Morphology and Systematics.

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

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

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