Range & Status
Widely scattered localities across southern England.
Found by Ray Poulding on St. Mary' s (Isles of Scilly) and along the rivers Hayle, Helford, Fal and Truro.
Habitat & Ecology
Mostly known from estuarine sites and intertidal rocks, and possibly associated with
Coastal developments, especially loss of natural shore-lines.
Some of the habitat is protected by SSSI and/or planning regulations.