Rhabditida

order of worms Rhabditida (Rhabditida) is an order comprising closely related families of organisms. It contains 10 families with 23 known species. Key family groups include Anguillicolidae, Anguinidae, Anisakidae, Aphelenchoididae, Ascarididae, and Heteroderidae. It belongs to Chromadorea (Chromadorea).