Scaptrella		Contents		Rev: 08/04/2025
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Scaptrella Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Xyalidae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

Chromadorea

  Chromadoria

   Monhysterida

Monhysterina

Sphaerolaimoidea

                 Xyalidae

       Scaptrella Cobb, 1917

Type species of the genus:  Scaptrella cincta Cobb, 1917

    Synonyms:
     

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Morphology and Anatomy:

With general characteristics of family Xyalidae, and: characteristics of the genus:

• Cuticle finely striated.
• Buccal cavity deep, cylindrical, with six jointed mandibles or odontia at the anterior end.
• Amphid circular
• Cephalic setae long and thick.
• Numerous long somatic setae
• Esophagus cylindrical, widening at base without forming a true bulb
• Tail cylindrico-conical to filiform, with or without terminal setae
  

	Females:  Males: Monrchic Spicules with only faint accessory pieces. Gubernaculum simple        Ref: Jacob et al., 2015; Huang and Guo, 2022
Scaptrella filicaudata Male (a)  full body, (b) cephalic region, (c) jointed mandibles, (d) tail tip, (e) caudal region.  Scale bar 20 um. Drawings from Jacob et al., 2015
Body size range for the species of this genus in the database - Click:

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Distribution:

Marine nematodes. Type species described from San Francisco Bay, USA. Scaptrella filicaudata described at depths of 1000 m from the continental margin of the Arabian Sea off the coast of India.

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Feeding:

Food Sources and Feeding strategies for the genus Scaptrella

Probably epistrate feeders

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Biology and Ecology:

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Life Cycle:

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Ecosystem Functions and Services:

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Management:

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References:

Cobb, N.A. 1917. Notes on Nemas. Contributions to a Science of Nematology 5:117-128.

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

Jacob. J., Jaleel, K.U.A, Philip, R., Damodaran, R. 2015. A new species of Scaptrella (Nematoda: Monhysterida) from the continental margin of the southeastern Arabian Sea. Marine Biol. Research 11:671-676.

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Copyright © 1999 by Howard Ferris.
Revised: August 04, 2025.