Subsphaerolaimus

Subsphaerolaimus	Contents	Rev: 08/25/2026
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Subsphaerolaimus Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Sphaerolaimidae Menu	Feeding	References
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Classification:

Chromadorea
Chromadoria
Monhysterida: Monhysterina
Sphaerolaimoidea
Sphaerolaimidae: Sphaerolaiminae
Subsphaerolaimus Lorenzen, 1978: Type species of the genus: Subsphaerolaimus litoralis Lorenzen, 1978

Synonyms:

Morphology and Anatomy:

Inner labial sensilla papilliform; outer labial setae shorter thancephalic setae. Eight groups of subcephalic setae longer than the cephalic setae.
Amphideal fovea circular.
Buccal cavity with a cuticular ring, without mandibles.
Outer labial and cephalic sensilla short; cephalic setae longer, subcephalic setae longets ands in eight groups, with 6-7 setae per group.
Cervical setae present,
Amphidial fovea circular, immediately posterior to the subcephalic setae.
Pharynx muscular, cylindroid, without a bulb,
Cardia conical, surrounded by intestinal tissue.
Renette cell slender, excretory pore posterior to the nerve ring.
Tail conico-cylindrical, with three subterminal setae 22-40 um long.
Caudal glands and spinneret well developed

Huang and Guo, 2022; Xiao and Guo, 2023

Females:

Monodelphic, prodelphic

Males:

Diorchic
Spicules arcuate
Gubernaculum present
Supplements absent (?)

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

Distribution:

Reported from muddy intertidal zones and mangrove swamps.

Feeding:

Food Sources and Feeding strategies for the genus Subsphaerolaimus

Life Cycle:

For Ecophysiological Parameters for this genus, click

Ecosystem Functions and Services:

Huang, Y., Guo, Y. 2022. Order Monhysterida Filipjev, 1929. In: Free-living Marine Nematodes from the East China Sea. Springer, Singapore. https://doi.org/10.1007/978-981-16-3836-7 9

Lorenzen,
Lorenzen, S. 1978. Postembryonalentwicklung von Steineria- und Sphaerolaimide narten (Nematoden) und ihre Konsequenzen fur die Systematik. Zoologischer Anzeiger, 200 (1/2), 53-78.

Xiao, Y., Guo, Y. 2023. Three new free-living marine nematode species of Subsphaerolaimus Lorenzen, 1978, Halichoanolaimus de Man, 1886 and Belbolla Andrassy, 1973 from mangrove wetlands in Taiwan. Zootaxa 5631:301-322