Pseudaraeolaimus

Pseudaraeolaimus	Contents	Rev: 11/02/2026
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Pseudaraeolaimus Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Diplopeltidae Menu	Feeding	References
	Go to Nemaplex Main Menu	Go to Dictionary of Terminology

Classification:

Chromadorea
Chromadoria
Araeolaimida: Araeolaimoidea; Diplopeltidae


Pseudaraeolaimus Chitwood, 1951

Type species of the genus: Pseudaraeolaimus perplexus Chitwood, 1951

Synonyms:

Morphology and Anatomy:

Cuticle visually smooth or finely striated; lateral alae absent; somatic sensilla present.
Labial region rounded; lips fused. Inner and outer labial sensilla indistinct. Cephalic sensilla setiform; their bases located at the base of the labial region, anterior to amphidial fovea.
Cervical sensilla present,at level of amphid.
Ocelli present or absent.
Amphidial fovea loop-shaped (inverted U-shaped).
Secretory-excretory system present; renette cell located at anterior part of intestine. Secretory-excretory opens just posterior to cephalic setae bases.
Oral opening apical; buccal cavity small and undifferentiated, its lining contiguous with the lining of the pharynx.
Pharynx cylindrical, muscular corpus and glandular postcorpus glandular; valves absent. Female reproductive system didelphic-amphidelphic with
equally developed branches, ovaries outstretched. Vulva equatorial. Three caudal
glands present, their nuclei are incaudal. Spinneret present.

Females:

Didelphic-amphidelphic with equally developed branches, ovaries outstretched
Vulva at mid-body.

Ref: Fonseca and Bezerra, 2014; Holovachov, 2017

Males:

Diorchic, anterior testis outstretched, posterior testis outstretched with reflexed terminal section
Spicules symmetrical, arcuate;
Gubernaculum present.
Precloacal sensillum present.
Setae in caudal region of males arranged in subventral and subdorsal pairs along the tail.

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

Feeding:

Food Sources and Feeding strategies for the genus Pseudaraeolaimus

Presumably epistrate/dissoleved organic matter feeders

Life Cycle:

For Ecophysiological Parameters for this genus, click

Ecosystem Functions and Services:

Holovachov, O. 2017. Belgopeltula belgica (Vincx & Gourbault, 1992) gen. et comb. nov.and Pseudaraeolaimus micramphidium sp. nov. from the west coast of Sweden, and reappraisal of the genus Pseudaraeolaimus Chitwood, 1951(Nematoda: Araeolaimida: Diplopeltidae). European Journal of Taxonomy 383: 1-21

Fonseca, G. and Bezerra, T.N. 2014. 7.15 Order Araeolaimida De Coninck & Schuurmans Stekhoven, 1933. In: Schmidt-Rhaesa A. (ed) Handbook of Zoology. Gastrotricha, Cycloneuralia, Gnathifera. Volume 2: Nematoda: 467-486. de Gruyter, GÃƒÂ¶ttingen.