UK Seas

Discover the wonderful sea creatures that inhabit the UK seas and shores

Know the name of the creature you are looking for?

UK seas is a guide to the fauna and flora found around UK coasts. While the majority of species are marine, some species are included that are regularly encountered on land by the coast, so you’ll find descriptions of non-marine species such as reptiles, amphibians, insects and plants as well.

Common shore crab

Carcinus maenas


Crustaceans, Crabs


The Common shore crab is predominantly green, but varies through yellow, brown and black.

Adaptable and hardy, this crab has made a home in many distant parts of the world, after being transported there by accident.


On the shore, amongst rocks or sand, and in estuaries, all around the UK and Ireland.

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