Aulolaimus

Aulolaimus	Contents	Rev: 12/22/2024
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Aulolaimus Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Aulolaimidae Menu	Feeding	References
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Classification:

Aulolaimus De Man, 1880: Type species of the genus: Aulolaimus oxycephalus De Man, 1893

Synonyms:

Pandurinema (Timm, 1957), Jairajpuri & Hooper, 1968

Per Abolafia and Pena-Santiago, 2018, the Aulolaimidae and its genera are transferred to the order Isolaimida (sometimes used as Isolaimiidae):

The close relationship of Aulolaimus with Isolaimium. Isolaimium in the order Isoaimiida. That order was shown with morphological and molecular analyses to be seoarate from other nematode orders.
Consequently, the order Isolaimiida is considered valid and Aulolaimus and other genera belonging to the family Aulolaimidae are transferred to the Isolaimiida (Abolafia and Pena-Santiago, 2018).

Morphology and Anatomy:

Small nematodes 0.50-1.00mm long
Body fusiform, distinctly tapering towards both extremes.
Cuticle sculpturing complex: anterior region bearing transverse striation, then with longitudinal ridges separated by furrows displaying rows of small pores (punctuations).
Lip region consisting of two elements: a thin anterior hexangular (hexagonal or hexastellate) perioral disc, and a thick posterior annulus bearing four setiform sensilla.
Amphid aperture, if present, very small, pore-like.
Stoma a narrow, tube-like, often occupying 52-72% of total neck length.
Pharynx a more or less cylindrical, bibulbar, panduriform or arachiform.
Tail conical elongate to filiform, ending in acute tip.

Female:

Didelphic-amphidelphic, with reflexed ovaries,
Poorly differentiated genital tract, and complex vaginal sclerotization consisting of two median (anterior and posterior) and two lateral (left and right) pieces.

Male:

Spicules 16-26um long,strongly curved ventrad, and simple structure.
Gubernaculum plate-like, with caudal apophyses and lateral rectangular elements.
Ventromedian ssupplements 2-11.

Ref:: Aboladia and Pena-Santiago, 2018

Aulolaimus spp. A: Anterior region; J: Female tail. ld = labial disk; gy = gymnostom; st = stegostom; nr = nerve ring; ph = pharynx; ca = cardia; cp, ep, hp = cellular, empty, hyaline parts
Drawings from Abolafia and Pena-Santiago, 2018

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

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Distribution:

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Feeding:

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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:

Abolafia, J and Pena-Santiago, R. 2018. Morphology, taxonomy and phylogeny of the enigmatic genus Aulolaimus de Man, 1880 (Nematoda, Aulolaimidae). Zoologischer Anzeiger 277: 101-115.

Timm, R.W. 1957. Some soil nematodes from East Pakistan. Pak. J. Biol. Agric. Sci. 1:6-10

Aulolaimus

Copyright © 1999 by Howard Ferris. Revised: December 22, 2024.

Copyright © 1999 by Howard Ferris.
Revised: December 22, 2024.