Maja

Maja is a genus of spider crabs, belonging to the family Majidae. They are characterized by their distinctive spiny exoskeletons, elongated legs, and relatively small bodies. These crabs are found in various marine environments, primarily in temperate and tropical waters around the world. Maja species are known for their scavenging habits and their ability to camouflage themselves using algae and other debris.

Common Names

Common names for members of the genus Maja include:

  • Spider Crab
  • Stone Crab
  • Long-legged Crab

Characteristics

Maja crabs exhibit several distinguishing characteristics:

  • Spiny Exoskeleton: Their shells are covered in numerous spines and tubercles, providing protection and camouflage.
  • Elongated Legs: The legs are significantly longer than the body, enabling them to move across the seabed and reach food sources.
  • Small Body: The body (cephalothorax) is relatively small compared to the legs.
  • Camouflage: They are skilled at camouflaging themselves, often using algae and other debris to blend in with their surroundings.
  • Scavenging Habits: Maja crabs are primarily scavengers, feeding on dead animals and other organic matter.

Environments

Maja crabs inhabit a variety of marine environments, including:

  • Rocky Shores: They are commonly found in rocky intertidal zones and subtidal areas.
  • Seabed: They also occur on sandy and muddy bottoms.
  • Coral Reefs: Some species inhabit coral reef ecosystems.

References

World Register of Marine Species (WoRMS)
PubMed