A Shrimp Buried in a its Host

Commensal shrimp

This commensal shrimp has partly buried itself in its host. I am guessing that the shrimp is Pliopontonia furtiva. It's not unknown for shrimp in the Anilao area to bury themselves in sponges, where they have plenty to eat and are protected from predators. This shrimp is commonly found in association with disc anemones (Amplexidiscus fenestrafer). This may be a disc anemone, although it had an open bell-like shape I would associate with sponges.