Mudwigglus

Mudwigglus	Contents	Rev: 11/02/2026
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Mudwigglus Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Diplopeltidae Menu	Feeding	References
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Classification:

Chromadorea
Chromadoria
Araeolaimida: Araeolaimoidea; Diplopeltidae


Mudwigglus Leduc, 2013

Type species of the genus: Mudwigglus patumuka Leduc, 2013

Synonyms:

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Morphology and Anatomy:

Cuticle transversely striated; lateral alae absent; body pores and epidermal glands present; somatic sensilla present.
Labial region bluntly rounded; lips fused; outer labial sensilla papilliform, located on lips.
Cephalic sensilla setiform; at base of labial region,
Amphidial aperture loop-shaped (inverted U-shaped).
Secretory-excretory system present; renette cell at posterior part of pharynx and anterior part of intestine. Cuticularised secretory-excretory duct very short, opens
to the exterior at the posterior part of pharynx.
Oral opening apical. Buccal cavity small; subdivided into three sections: cheilostom narrow tubular; gymnostom barrel-shaped or truncate conoid, with weakly cuticularised walls; stegostom short conoid, its lining contiguous with lining of the pharynx.
Pharynx subdivided into anterior cylindrical, muscular corpus and muscular bulbus; valves absent.
Dorsal gland orifice at base of stoma.
Three caudal glands present, their nuclei are incaudal. Caudal glands open separately via three pores.

Females:

Didelphic-amphidelphic with equally developed branches, ovaries antidromously reflexed.
Spermatheca absent.
Vulva at mid-body. Vagina straight or oblique; pars proximalis vaginae encircled by single sphincter muscle.

Ref: Leduc, 2013; Holovachov, 2017

Males:

Diorchic; anterior testis outstretched, posterior testis outstretched and reflexed at terminal section of germinal zone.
Spicules symmetrical, arcuate;
Gubernaculum present.
Supplements and precloacal sensilla 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:

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Distribution:

Free-living marine nematodes. Species are from sea bottom west of Sweden.

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Feeding:

Food Sources and Feeding strategies for the genus Mudwigglus

Presumably epistrate/dissoleved organic matter feeders

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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:

Leduc D. 2013. Mudwigglus gen. n. (Nematoda: Diplopeltidae) from the continental slope of New Zealand, with description of three new species and notes on their distribution. Zootaxa 3682: 351-370.

Mudwigglus

Presumably epistrate/dissoleved organic matter feeders

Revised by Howard Ferris: November 02, 2026.