Lindseyus costatus		Contents		Rev 10/12/2026
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Lindseyus Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Swangeriidae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

 Type species of the genus 

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Morphology and Anatomy:

	Long worms with marked sexual dimorphism in tail. Female:   Length 4.9-5.4 mm. Odontostyle very small, 6-7 um long; odontophore 23-26 um. Gonads paired, opposed and reflexed.  Spermatheca filled with spindle-shaped sperm 7-8um long Female tail filamentous, 352-425um long
Males:   Length 4.2 mm with short, rounded tail. Photographs from Ebsary, 1984.
Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

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Distribution:

Freshwater nematodes.  For example, from St. Lawrence River bottom near Montreal, Canada (Ebsary, 1984).

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Feeding:

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Biology and Ecology:

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Life Cycle:

Ecophysiological Parameters:

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Ecosystem Functions and Services:

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Management:

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References:

Coomans, A., Kheiri, A.  1986. Observations on Lindseyus costatus Ferris & Ferris, 1973 with a discussion on its realtionships (Nematoda: Belondiridae). Rev. Nematol 9:357-367.

Ebsary, B.A. 1984.  Lindseyus costatus n. sp.( Nematode: Nordiidae) from Ellesmere Island and a redescription of Lindseyus costatus Ferris and Ferris, 1973 (Nematoda: Roqueidae) from Quebec, Canada. J. Nematology 16:235-239.

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Revised by Howard Ferris: October 12, 2026.