08/05/2026
Phyllodesmium briareum Mimicking Soft Coral on the Reef — Puerto Galera
Phyllodesmium briareum, or the Yellow-tipped Phyllodesmium, is a solar-powered nudibranch that mimics soft corals in the Philippines. With translucent bodies and elongated cerata, they blend into their environment, making them hard to spot. They utilize symbiotic algae for nutrients and can shed cerata to evade predators....
Phyllodesmium briareum filmed mimicking briareid soft coral in Puerto Galera, Philippines. Species ID, zooxanthellae biology, and filming notes.