Rhodymeniophycidae

These distinctive bladders are filled with a clear mucilage making them buoyant. Depth 8 m.

Note the beautiful iridescence of this alga.

Photographed at 8 m depth.

Low intertidal red alga surrounded by sea tettuce.

This rhodophyte was previously known as Neoagardhiella baileyi.

Field of view 15 mm, depth 15m. This red alga plays an essential role in the life of the sea hare Aplysia. The young snails require this alga to support growth, and it produces a chemical that defends them against predators. Red algae have a complicated reproductive cycle.

epiphyte on surf grass (Gigartina)

Three species of alga in a surge channel, about 5 m. depth.

These are female gametophytic blades as determined by the presence of papillae. The sporophytic phase occurs as the tar spot 'Petrocelis.'

Our specimen, taken from a blade of the brown alga Fucus,, shows female gametophytic blades bearing cystocarps,

Photographed at depth of 18 m. It isn't clear to us from the photo whether this is a tetrasporangial or a cystocarpic thallus.