Trapeziidae
Trapeziidae is a family of crabs known as “coral crabs.” They are predominantly found in the Indo-Pacific region, though some species can be found in the western Atlantic and the eastern Pacific. These crabs are characterized by their unique adaptations to living amongst corals, with many species displaying a symbiotic relationship with specific coral species.
Common Names
Common names for Trapeziidae crabs include:
- Coral crabs
- Trapezium crabs
Characteristics
Trapeziidae crabs exhibit a range of distinctive features:
- Body Shape: Typically possess a flattened and broadened carapace, often with a somewhat trapezoidal shape.
- Coloration: Highly variable, ranging from bright and colorful to muted and camouflaged, often matching the coloration of their host coral.
- Dorsal Surface: Often exhibits bumps, ridges, or spines, providing additional camouflage and protection.
- Chelae (Claws): Can be quite large and powerful in some species, used for defense and for manipulating food.
- Symbiotic Relationship with Corals: Many species have evolved symbiotic relationships with specific coral species, providing protection for the coral while the crab enjoys a safe and stable habitat.
Environments
Trapeziidae crabs primarily inhabit coral reefs, although some species may be found in rocky shores or seagrass beds. They exhibit a strong preference for living within the branches, cavities, and crevices of their host corals.
References
For more detailed information on Trapeziidae crabs, refer to these reliable sources: