Cephalopholis argus, also known as: Roi, Blue-spotted Grouper, Argus Grouper, Peacock Hind, Peacock Grouper or Peacock Rockcod is a fish from the Indo-Pacific which is variously a commercial gamefish, an invasive species and occasionally an aquarium resident. Its species name comes from its resemblance to the "hundred staring eyes" of the monster Argus in Greek mythology.