Baldwinema		Contents		Rev 03/02/2021
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Baldwinema menu				Ecosystem Functions and Services
		Distribution		Management
Return to Panagrolaimidae menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

      Chromadorea
        Rhabditida
         Rhabditia
          Panagrolaimidae

Panagrolaiminae

Baldwinema Atighi, Pourjam, Bert, Pedram, Ghaemi, Panahandeh, 2015

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Morphology and Anatomy:

• Thin cylindrical body with finely-striated cuticle.
• Head rounded, no probollae, lips fused.
• Six each inner and outer labial papillae, four cephalic papillae.
• Stoma aberrant for panagrolaimids with cheilostom and gymnostom of equal length.
• Pharynx with a cylindical procorpus, valved median bulb and  terminal, pyriform bulb without a valve.
• Tail long and filiform in both sexes.
• Morphologically alligned with Diplogasterida but phylogenetic analyses using partial SSU and LSU sequences, unequivocally showed alignment with Panagrolaimidae.

Female:

• Monovarial, prodelphic with gonad reflexing after oviduct and extending posterior to vulva.
• Spermatheca long, not offset.
• Post-uterine sac short.

Male:

• No bursa.
• Spicules cephaloboid.
• Gubernaculum short and grooved.

Based on the phylogenetic analysis, the authors suggest that female reproductive system characteristics are stronger indicators of relationships than pharyngeal characteristsics.

Ref. Atighi et al. (2015)

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Distribution:

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Feeding:

Probably bacterivores.

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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:

Atighi, M.R., Pourjam, E., Bert, W., Pedram, M., Ghaemi, R., Panahandeh, Y. 2015. An aberrant nematode, Baldwinema n. gen.(Nematoda: Panagrolaimomorpha: Panagrolaimidae),from Iran with description of three new species. Nematology 17:877-896

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Copyright © 1999 by Howard Ferris.
Revised: March 02, 2021 .