Sea Lettuce, <i><a href="//commons.wikimedia.org/wiki/Ulva_lactuca" title="Ulva lactuca">Ulva lactuca</a></i>, Family: Ulvaceae, Location: Croatia, Istria, Porec, Lanterna
<a href="//commons.wikimedia.org/wiki/User:Holleday" title="User:Holleday">Holger Krisp</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>