Sea Slater

Ligia oceanica


A marine crustacean, the Sea Slater is a close relative of the terrestrial woodlouse. It lives in crevices and under rocks, coming out at night to feed on anything it can find.

How to identify

Turn over rocks on the seashore and this is the woodlouse-like creature you may find. It has a grey, oval, segmented and flattened body, just like its relative.

Where to find it

Found all around our coasts.


When to find it

  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December

How can people help

Our seas and coastline are in need of protection if we are to keep our marine wildlife healthy. The Wildlife Trusts are working with fishermen, researchers, politicians and local people towards a vision of 'Living Seas', where marine wildlife thrives. This work has recently had a massive boost with the passing of the Marine Bill, promising sustainable development of the UK's marine environment. Do your bit for our Living Seas by supporting your local Wildlife Trust.

Species information

Common name
Sea Slater
Latin name
Ligia oceanica
Barnacles, crabs, shrimps and lobster
Length: up to 3cm Average Lifespan: 2.5 years
Conservation status