Diplolaimelloides contortus

Diplolaimelloides contortus	Contents	Rev: 05/21/2026
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Diplolaimelloides Menu	Economic Importance	Ecosystem Functions and Services
	Distribution	Management
Return to Monhysteridae Menu	Feeding	References
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Classification:

Chromadorea
Chromadoria
Monhysterida: Monhysterina
Monhysteroidea
Monhysteridae: Diplolaimellinae
Diplolaimelloides contortus Chen, Zhu & Guo, 2023

Synonyms:

Morphology and Anatomy:

Diplolaimelloides contortus is characterized by:

Body slender and cylindrical, Cuticle smooth.
Head diam 7-9 um; with clear area at anterior; inner labial sensilla not visible, six outer labial and four cephalic sensilla setiform.
Buccal cavitywith lightly sclerotized at anterior and posterior chambers; no denticles in buccal cavity.
Amphids single spiral, 23-31% of corresponding body diameter, located 1-1.25 body diam from anterior end
Ocelli 32-41% of pharynx length from anterior
Pharynx cylindrical, 0.14-0.16 of body length, gradually enlarging in posterior but without bulb. Nerve ring at mid-length of pharynx
Cardia distinct between pharynx and intestine.

	Females: Mono-prodelphic, ovary outstretched on right of intestine. Vulva at mid-body Tail long, filiform, 13.1-13.6 abd. Ref: Chen et al., 2023

Males: Monorchic, testis outstreched on right of intestine. Tail slender, 10.0-11.4cbd, proximal 25% conical gradually becoming cylindrical Bursa with four pairs of postcloacal papillae, two midway on bursa, and two more posterior.. Two additional pairs of papillae on tail, Spicules complex, twisted and curved at middle portion; developed into a lateral plate connecting proximal and distal end of spicule. Gubernaculum wedge-shaped, Species name derived from structure of spicules
Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

Distribution:

Species collected from collected from a mangrove forest in the mangrove reservation of Shenzhen, China.

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:

Chen, Y., Zhu, H., Guo, Y. 2023. A new species and a new record of free-living marine nematode of genus Diplolaimelloides (Monhysteridae) from Futian mangrove reservation in Shenzhen, China. Journal of Oceanology and Limnology 41: 314-326, https://doi.org/10.1007/s00343-021-1206-7

Fonseca, G. and Decraemer, W. 2008. State of the art of the free-living marine Monhysteridae (Nematoda). J. Marine Biol. Assoc of UK 88:1371-1390