Scientific name: Austropotamobius pallipes
The White-clawed crayfish is a freshwater, bronze-coloured crustacean with pale undersides to its claws - hence the name. It is under threat from an invasive and introduced species of crayfish.
Weight: up to 90g
Average Lifespan: 8-12 years
Protected in the UK under the Wildlife and Countryside Act, 1981. Listed as Endangered on the global IUCN Red List of Threatened Species.