Nematoda
Chromadorea
Chromadoria
Rhabditida
Spirurina
Cosmocercoidea

Family Atractidae

Monodelphic forms Didelphic forms
  • Atractis
  • Buckleyatractis
  • Cobboldina
  • Crossocephalus
  • Cyrtosomum
  • Diceronema
  • Grassenema
  • Klossinemella
  • Labeonema
  • Labidurus
  • Leiperinia
  • Fitzsimmonsnema
  • Nouvelnema
  • Probstmayria
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