Prooncholaimus tani

Prooncholaimus tani	Contents	Rev: 07/24/2024
	Classification	Hosts
	Morphology and Anatomy	Life Cycle
Return to Prooncholaimus Menu	Economic Importance	Damage
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Classification:

Enoplida
Oncholaimoidea
Oncholaimidae: Oncholaiminae

Prooncholaimus tani Chen, Nguyen & Smol, 2015.

Synonyms:

Morphology and Anatomy:

Species description from male specimens/

Six inner labial papillae and six outer labial papillae located at anterior of head and four extreme short cephalic papilliform setae.
Short cervical setae
Head bluntly rounded.
Buccal cavity large, 38.6 um, surrounded by six prominent lip-lobes. Buccal cavity length to width, 2.60.
Left subventral tooth large while the other two equal in size.
Amphid pocket-shaped (7.3 um width; 7.0 um length) located at the level of the smaller tooth.
Cuticle smooth with pores scatteredalong body.
Excretory poreat 3.2% of total body length.
Esophagus expanding slightly throughouts entire length (352.7 uÃ‚Âµm) to a swollen posterior endthat is not a true bulb
Nerve ring located half way along esophagus.
Large bubble-like cells in body cavity between intestine and longitudinal chords, arranged irregularily.
Tail length in 2.61 x cloacal body diam.
Tail funnel-shaped with spinneret present at the tail tip.

	Females:

Males: Diorchic, paired. Spicules are simple, paired, equal in length, cuticularised, curved, L-shaped, 2.12 x claocal body diam. Gubernaculum small and thin (approximately 13.4 um). Vas deferens with sperm cells. Pre- and post-cloacal setae present together with some short setae along the tail region. Caudal gland not observed. Two short terminal setae observed. Ref: Chen et al., 2015. Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

Distribution:

Free-living marine nematodes described from sediment samples from a small intertidal sandy-rocky beach at Tanjung Tajam at the westernmost corner of Pulau Ubin in the East Johor Strait, Singapore.

Life Cycle:

Ecophysiological Parameters:

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

Chen, C-A., Nguyen, D.T., Smol, N. 2015. Two new free-living marine nematode species from an intertidal sandyrocky shore on Pulau Ubin, Singapore with a key to the valid species of the genera Prooncholaimus and Acanthonchus. Raffles Bull. Zoology Suppl. 31 68-74.