Scopimera

Scopimera is a genus of crabs belonging to the family Ocypodidae, commonly known as “sand-bubbling crabs”. They are found in the intertidal zones of the Indo-Pacific region, inhabiting sandy beaches with high wave action. Scopimera crabs are characterized by their distinctive burrowing behavior and feeding habits, using their specialized mouthparts to filter sand for organic matter.

Scopimera longidactyla

Common Names

Common names for Scopimera crabs include:

  • Sand-bubbling crab
  • Bubbling crab
  • Sand-sifting crab

Characteristics

Scopimera crabs are typically small, with a carapace width ranging from 1 to 3 centimeters. They have a distinctive flattened, oval-shaped carapace and are generally brown to gray in color. Their eyes are prominent and stalked, and they possess a pair of strong, pointed claws. Scopimera crabs also have specialized mouthparts with fringed setae that allow them to filter sand for food.

Environments

Scopimera crabs are found in the intertidal zones of sandy beaches, often in areas with high wave action. They prefer exposed, sandy substrates with minimal vegetation. They are active during low tide, when they emerge from their burrows to forage for food. During high tide, they retreat to their burrows to avoid being washed away by the waves.

References

For further information about Scopimera crabs, refer to the following websites: