Crayfish seen in France

Crayfish seen in France

Observation - Crayfish seen in France - Global. Description: My daughter found this today in the Tarn river in southern France. The Tarn river runs through deep limestone gorges and seems pretty clean....just cant quite decide what species this is - can anyone help?

My daughter found this today in the Tarn river in southern France. The Tarn river runs through deep limestone gorges and seems pretty clean....just cant quite decide what species this is - can anyone help?