👉 Callirrhoe, also known as alpine sea urchins, are a type of sea anemone. They have a distinctive appearance due to their round, pink or purple shells that resemble the shape of a ring on a flower. These creatures are found in high altitudes and can live for up to 20 years without food. The term "callirrhoe" comes from the Latin word "callirrhon," which refers to a type of sea anemone