Noun genus fundulus has 1 sense
  1. Fundulus, genus Fundulus - killifish
    --1 is a kind of fish genus
    --1 is a member of Cyprinodontidae, family Cyprinodontidae
    --1 has members:
     mummichog, Fundulus heteroclitus; striped killifish, mayfish, may fish, Fundulus majalis
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