The Narrow-clawed Crayfish, also called the Turkish, Danube and even Galician Crayfish, is native to brackish water of western Asia
including the Caspian Sea but has long been introduced and settled in mainly brackish lakes and canals Eastern Europe and has more recently become
an invasive species in the UK, threatening the native freshwater White-clawed Crayfish.
It is a light greeny-brown colour with pink tips to its legs and claws. It grows typically to some 15cm but can reach 30cm long
(excluding antennae). The body surface is rough and the claws are long and narrow. It is an omnivore, eating plant matter, small fish and invertebrates.