Mediolaimus		Contents		Rev: 10/16/2024
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Mediolaimus Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Rhabdolaimidae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

Chromadorea

  Chromadoria

       Plectida

Leptolaimoidea

Rhabdolaimidae

Rhabdolaiminae

       

Mediolaimus Tahseen, Sultana, Khan & Hussain, 2012

 

      Type species of the genus: Mediolaimus obtusicaudatus Tahseen, Sultana, Khan & Hussain, 2012

    Synonyms:
      

Back to Top

Morphology and Anatomy:

The genus Mediolaimus differs from Rhabdolaimus in that the cuticle has conspicuous transverse striations (vs smooth or very finely striated cuticle), amphidelphic reproductive system with outstretched (vs reflexed) ovaries; caudal glands obscure (vs well developed) and spinneret absent (vs present in Rhabdolaimus). Macrolaimus differs from Rogerus in having papilliform (vs setose) cephalic sensilla; dorsal denticle (larger than subventral denticles vs always equal in size); pharyngeal basal bulb with (vs without) thickened lumen/ valve plates; caudal glands obscure (vs well developed) and conical spinneret absent (vs present in Rogerus) (Tahseen et al., 2012).

	Females: Body slender, slightly ventrally curved, tapering garadually towards extremities.  Cuticle finely annulated. Lateral fields inconspicuous.  Lip region continuous with body contour.. Outer labial sensilla pore-like, cephalic sensilla papilliform. Amphidial apertures small elliptical slits. Stoma tubular, with small cheilo- and gymnostom and long sclerotized tubular stegostom. Three small denticles at anterior edge of stegostom; dorsal denticle slightly larger than sub ventral denticles. Pharynx cylindrical with  expanded basal bulb with thickened lumen/ valve plates. Cardia small without glandular cells. Didelphic-amphidelphic; ovaries outstretched. Tail elongate-conoid, tapering to a hemispherical terminus without a spinneret. Caudal glands obscure Male not seen.   Ref: Tahseen et al., 2012
Mediolaimus obtusicaudatus A: Entire female. B: Anterior region. C: Pharyngeal region. D: Reproductive system. E:) Tail region Drawings from Tahseen et al., 2012
Body size range for the species of this genus in the database - Click:

Back to Top

Distribution:

Type species described from soil in North India.

Back to Top

Feeding:

Probably a bacterial-feeder.

Back to Top

Biology and Ecology:

Back to Top

Life Cycle:

Back to Top

Ecosystem Functions and Services:

Back to Top

Management:

Back to Top

References:

Tahseen, Q., Sultana, R., Khan, R., Hussain, R. 2012. A New Genus and Species of the Family Rhabdolaimidae (Nematoda), with Descriptions of Two Known species and Taxonomic Discussion. J. Nemsatology 44:302-312.

Copyright © 1999 by Howard Ferris.
Revised: October 16, 2024.