| Number seen/Abundance | Date | Location | Comments | Species |
|---|---|---|---|---|
| Many thousands, probably millions | 2009-05-20 | Kynance Cove,Cormwall South-facing sandy and rocky shores of Kynance Cove, near Lizard Point |
large live floating raft out on sea surface some 50 yards from shore; also many thousands freshly washed up on shore at high tide mark presumably dead. Size range from tiny 0.3cm, majority approx. 1cm, some up to 7cms. | Velella velella |