description Purple Shore Crab Overview
The purple shore crab is Hemigrapsus nudus, an intertidal crab native to the Pacific coast of North America. It typically has a smooth carapace that ranges from purple or reddish purple to brown, and its walking legs lack the dense setae seen in the closely related hairy shore crab, Hemigrapsus oregonensis. The species inhabits rocky shores and sheltered intertidal areas, where it feeds as an opportunistic omnivore and scavenger.
help Purple Shore Crab FAQ
What is the scientific name of the purple shore crab?
The purple shore crab is Hemigrapsus nudus. It is native to the Pacific coast of North America.
What color is the purple shore crab?
Its smooth carapace can range from purple or reddish purple to brown. Color varies, so not every individual appears strongly violet.
How does the purple shore crab differ from the hairy shore crab?
The purple shore crab's walking legs lack the dense setae, or hairs, found on the closely related hairy shore crab. Its smoother legs are a useful identifying feature.
Where can the purple shore crab be found?
It lives in the intertidal zone along the Pacific coast of North America. This means it experiences alternating periods of seawater and exposure as tides change.
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