Species found in an uppershore / strandline pool with sandy botom at Sennen Cove, Penwith, Cornwall. 11.09.11. There were hundreds of these tiny isopods in a relatively small area. They were swimming frantically, and in manner reminiscent of how a whirlygig beetle swims on water.
Species is locally named the John Harvey bug after a local swimmer, who had his private parts attacked by the species whilst swimming.