#genus_Leuciscus__Leuciscus  a genus of fish including: dace, chub
  supertype:  #fish_genus  any of various genus of fish
  member of:  #family_Cyprinidae
  member:  #dace__Leuciscus_leuciscus  small European freshwater fish with a slender bluish-green body
  member:  #chub__Leuciscus_cephalus  European freshwater game fish with a thick spindle-shaped body

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