It is similar to a mussel. In groups of three or four it inhabits the Frantic Bay and the Deserted Island living on the sea ground and in the silt. They are blue with some pinkish spot pattern on the top shell, completely blue on the underside. The soft inside has a creamy orange color and is shapeless moving when disturbed. The two shells fit perfectly to each other and they can close very fast. They have at the brim a waveform. Macory eats both, phyto- and zooplankton and some smaller monsters. The weakness is wind and ice. There are at spring a lot of Macory found on the Frantic Bay silt. Macories are prey to many monsters, like Curyoestus or Plesioth. Also for the Sea Folk they are a delicacy.