Sand-crab
Guides
Randallia ornata
globose sand crab, purple globe crab
Randallia ornata is a true crab in the family Leucosiidae, commonly known as the globose sand crab or purple globe crab. It inhabits sandy beaches along the eastern Pacific coast from Northern California to Baja California, Mexico. The species is notable as a host for an undescribed nemertean worm in the genus Carcinonemertes, which acts as an egg predator with infection rates reaching 70% in crab populations.