Ocypode
Ocypode is a genus of ghost crabs, a group of decapod crustaceans in the family Ocypodidae. These crabs are found in tropical and subtropical regions around the world. They are characterized by their flattened bodies, long, spindly legs, and their ability to run quickly on sand. Ghost crabs are nocturnal and are often seen scurrying along the beach at night, searching for food.
Common Names
Ocypode crabs are commonly known as ghost crabs, sand crabs, or beach crabs. This is due to their pale coloration, nocturnal habits, and their ability to disappear quickly into the sand.
Characteristics
Members of the genus Ocypode have a number of distinctive characteristics:
- Flattened body: Their bodies are flattened dorsoventrally, allowing them to move easily through sand.
- Long, spindly legs: Their legs are long and slender, giving them speed and agility.
- Large, prominent eyes: They have large, prominent eyes on stalks that can swivel independently, giving them excellent vision.
- Nocturnal habits: Ghost crabs are primarily nocturnal, coming out at night to forage for food.
- Burrowing behavior: They dig burrows in the sand to escape predators and to escape the heat of the day.
Environments
Ocypode crabs are found in coastal areas around the world, including:
- Sandy beaches: Their preferred habitat is sandy beaches, where they can burrow easily and find plenty of food.
- Mangrove swamps: Some species of Ocypode can also be found in mangrove swamps.
- Intertidal zones: They are typically found in the intertidal zone, where they can access both the land and the sea.
References
Ghost crabs (Ocypode spp.): ecology, behavior and conservation