While walking a beach near the Garðskagi lighthouses (near the village of Garður on the Reykjanes Peninsula), I looked down to see a cluster of Blue Buoy Barnacles (Dosima fascicularis) in the wrack line.
Although we knew there were previous records of this species in Iceland, it felt a little surprising to see them. Most of the records for this pelagic barnacle are from further south. In California, we found these barnacles in Sonoma County during the warm-water events in 2014-2016 (e.g., see "Blue buoys!" on 31 August 2014).
Here's a close-up where you can see the thin, transparent plates. You can also see the white foam-like float that the barnacles make to stay afloat at the surface of the ocean (upper left corner of the image).
