Large gas-filled bladders.
Found draped over the rock pools.
Could also be sp. oceanicum
Possibly sp. depressum
Could also be sp. Oblongum.
The Chromista are a eukaryotic supergroup, probably polyphyletic, which may be treated as a separate kingdom or included among the Protista. They include all algae whose chloroplasts contain chlorophylls a and c, as well as various colorless forms that are closely related to them. These are surrounded by four membranes, and are believed to have been acquired from some red algae.