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.

Spiny starfish

Marthasterias glacialis


Echinoderms, Starfish


One of the biggest of our starfish, it is ivory-white with large blunt spines.

The spines can be jettisoned to aid escape, and be regrown later. Voracious predatory appetite.


In gulleys and pools on the lowest shore, especially on west and south-west coasts


Rocky shore,Lower shore, Subtidal, Seabed, Rock pools

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