Shore Crab

These green to red or purple crabs with black stripes
are active during daylight hours. They are so well adapted to
living out of water that they spend at least half of the time that
way. They have excellent eyesight which adapts well to both
day and night. For the most part, these crabs feed on land on
diatoms and algae. Occasionally they will prey on hermit
crabs and Black Turban snails, and they’ve even been
observed capturing kelp flies with their very dexterous claws.