Acrobeloides tricornis




Rev 01/13/2024

  Classification Biology and Ecology
Morphology and Anatomy Life Cycle
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      Acrobeloides tricornis (Thorne, 1925) Thorne, 1937

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Morphology and Anatomy:



Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:




  • Monodelphic-prodelphic.
  • Vulval lips not protruding. Vagina length about 0.3 times body diam.
  • Rectum length 0.7-1.8 times anal body diam

. Ref: Bhat et al., 2023


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Reported from soils world wide, also in phoretic and other assocaitions with arthropods (see genus description)

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Biology and Ecology:

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Life Cycle:

Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click If species level data are not available, click for genus level parameters
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Ecosystem Functions and Services:

Important contributions of Acrobeloides spp. to soil nutrient cycling and mineralization of organic forms of nitrogen are well documented (Anderson et al., 1981; Ferris et al., 1995 1997)

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Anderson, R.V., Coleman, D.C., Cole, C.V. & Elliott, E.T. 198). Effect of the nematodes Acrobeloides sp. and Mesodiplogaster lheritieri on substrate utilization and nitrogen and phosphorous mineralization in soil. Ecology 62:549-555/

Bhat, A.H., Loulou, A., Abolafia, J., Machado, R.A.R., Kallel, S. 2023. Comparative morphological and molecular analyses of Acrobeloides bodenheimeri and A. tricornis Cobb, 1924 (Rhabditida, Cephalobidae) from Tunisia. Nematology 25: 207-226

Ferris, H., R. C. Venette and S. S. Lau.  1997.  Population energetics of bacterial-feeding nematodes:  Carbon and Nitrogen budgets.  Soil Biology and Biochemistry 29:1183-1194.

Ferris, H., R. C. Venette, H. R. van der Meulen and S. S. Lau1998.  Nitrogen mineralization by bacterial-feeding nematodes:  verification and measurement.  Plant and Soil 203:159-171. 

Thorne, G. 1925. The genus Acrobeles von Linstow, 1887. Transactions of the American Microscopical Society 44:171-210.


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Copyright © 1999 by Howard Ferris.
Revised: January 13, 2024.