Latin Name: *Ovalipes punctatus* (De Haan)
Overview: The shuttle crab, scientifically known as *Ovalipes punctatus*, is a fascinating species belonging to the family Portunidae. It is commonly found in coastal areas and estuaries, particularly in shallow muddy environments. This crab is native to the East China Sea and the South China Sea, where it thrives in warm, brackish waters.
Description: The shuttle crab typically measures around 10 cm in both width and height. One of its most distinctive features is the H-shaped marking located in the center of its carapace, which helps in identification. Additionally, the front edge of the crab's shell is lined with five sharp, prominent teeth, giving it a unique and recognizable appearance.
Habitat & Behavior: These crabs are known for their ability to move quickly across the seabed, often using their swimming legs to propel themselves forward. They are primarily nocturnal and feed on small invertebrates, algae, and organic debris. Due to their hardy nature and adaptability, they are often found in estuarine and intertidal zones.
Ecological Importance: Shuttle crabs play an important role in maintaining the balance of their ecosystems by controlling populations of smaller organisms and serving as a food source for larger predators. Their presence is also an indicator of healthy coastal environments.
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