Parastomachoglossa

Parastomachoglossa	Contents	Rev 05/23/2023
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Parastomachoglossa Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Actinolaimidae Menu	Feeding	References
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Parastomachoglossa Coomans & Loof, 1986

Type species of the genus: Parastomachoglossa costata (Schneider, 1935) Coomans & Loof, 1986

Note: Andrassy (2009) considered Parastomachoglossa quite similar to Brasilaimus except that the odontostyle is more robust and the esophagus base does not have a tongue-like process.

Morphology and Anatomy:

Parastomachoglossa japonica Tsalolikhin, 1999
1. head, ventral view; 2. head, lateral view; 3. odontostyle; 4. esophagus; 5. juvenile anterior with replacement ofontostyle.
From Tsalolikhin, 1999

Cuticle with longitudinal ridges
Lip region low, vestibule without denticles
Odontostyle robust
Nematodes in the genus Parastomachoglossa (and in the subfamily Brittonematinae of the Actinolaimidae) are cosidered to have a triprtite esophagus which consists of a very long (nonmuscular) section, a short, more msucular, middle section that tapers into an enlarged posterior region (Coomans and Loof, 1986)..

Female:

Vulva longitudinal with slightly sclerotized lips.
Tail elongate to filiform

Male:

Ventromedian supplements in 2 or 3 fascicles (clusters)

Ref: Andrassy, 2009

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

Distribution:

Three species described from Africa, one (P. japonica) from a freshwater lake in Japan.

Feeding:

Categorized by Yeates et al (1993) as omnivore and predator.

Life Cycle:

For Ecophysiological Parameters for this genus, click

Ecosystem Functions and Services:

References:

Andrassy, I. 2009. Free-living Nematodes of Hungary III. Hungarian Natural History Museum, Budapest. 608p.

Coomans, A. and Loof, P.A.A. 1986. Redescription of Actinolaimus costatus Schneider, 1935 (Nematoda : Actinolaimidae), with observations on its pharyngosomatic muscles and discussion of its taxonornic position . Rev. Nematol. 9:221-231.

Tsalolikhin, S.J. 1999. Parastomachoglossa japonica sp. n. from Biwa Lake, Japan (Nematoda, Dorylaimida: Actinolaimidae). Zoosyst Rossica 8:7-10

Yeates, G.W., T. Bongers, R. G. M. De Goede, D. W. Freckman, and S. S. Georgieva. 1993. Feeding habits in soil nematode families and genera—An outline for soil ecologists. Journal of Nematology 25:315-331