Lou Carcolh

In French folklore, Lou Carcolh is a giant mollusc-serpent that has hairy tentacles, a huge shell and leaves a slimy trail behind it. It lived under the town of Hastingue in the region of Les Landes in south-west France. Whoever went near Lou Carcolh became sucked into its carven and eaten.

John and Caitlin Matthews, The Element Encyclopaedia of Magical Creatures, 2013, Lou Carcolh, p 299