In Greek mythology, Acantis or Acanthys, was one of the daughters of Antinous and Hippodamia. Sister of Acanthus . For the pain of her brother's death, she cried permanently, so the gods transformed her into a bird to calm her down. Name of a genus of birds of the family Fringilidae (Acanthys), to which the canaries, the goldfinches or the finches belong. Canary, finch, goldfinch.