Talanema ilongicauda

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

Enoplea

Dorylaimia
Dorylaimida

Qudsianematidae

Talanema longicauda Asgari, Garcia-Ruiz, Mokhtari, Mahammadiou, Eskandari & Pena-Santiago, 2026

Morphology and Anatomy:

Moderately slender nematodes 1.46-1.89 mm long. Body cylindrical, tapering towards both ends.
Cuticle almost smooth under light microscope; fine transverse striation visible with SEM; lateral chord 20-23% ofbody diameter.
Lip region 2.4-3 x as wide as high, offset by a consriction, hexagonal in face view
Six liplets surrounding the oral aperture; labial and cephalic papillae button-like'
Amphid fovea funnel-like, aperture 49-56%of lip region diameter.
Cheilostom a truncate cone with thick walls. Odontostyle robust, hardly sigmoid, slightly shorter at its ventral side, 1.2-1.4 x lip region diam. ; guiding ring double; odontophore rod-like, 1.4-1.6 xlonger than odontostyle.
Pharynx muscular, gradually enlarging into the basal expansion that occupies 44-50% of total neck length; cardia conoid to conical, bulging into the intestinal lumen.
Nerve ring at 37-43% of the total neck length from the anterior end
Tail conical with rounded terminusin both sexes

Female:

Didelphic-amphidelphic, branches equally developed branches, each about 22-28% of body length,
Uterus tripartite, usually convoluted, with almost spherical, pars dilatata, a long slender intermediate section without visible lumen and a proximal dilated region with wide lumen.
Sperm cells present inside the uterus.
Vulva a slightly post-equatorial, transverse slit.
Prerectum 1.7-2.4, rectum 1.1-1.3 abd long.

Males:

Diorchic, testes outstretched.c, with opposite testes.
Ad-cloacal pait of supplements and a series of 11-15, closely spaced ventromedian supplements
Spicules dorylaimid, 1.6-2.0 x cbd; lateral guiding piece 3.4-5.0 x as long as wide, bifid at posterior end.
Prerectum 1.9-2.1, cloaca 1.1-1.3 cbd long.

Ref: Asgari et al., 2026

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

Life Cycle:

Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click	If species level data are not available, click for genus level parameters

Ecosystem Functions and Services:

Asgari, M., Garcia-Ruiz, M., Mokhtari, S., Mahammadiou, M., Eskandari, A. and Pena-Santiago, R. 2026. Talanema longicauda sp. n. (Dorylaimida: Qudsianematidae) from Iran, with new insights into the evolutionary relationships of the genus. Nematology 28:165-176.

Talanema longicauda

Contents

Classification:

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Morphology and Anatomy:

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Distribution:

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Feeding:

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Biology and Ecology:

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Life Cycle:

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Ecosystem Functions and Services:

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Management:

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References:

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Copyright 1999 by Howard Ferris.
Revised: May 05, 2026.

Talanema longicauda

Copyright 1999 by Howard Ferris. Revised: May 05, 2026.

Copyright 1999 by Howard Ferris.
Revised: May 05, 2026.