Bispira volutacornis

This gorgeous pair was in a fairly deep fissure.  Juan and I tried to photograph them, and I got lucky.  They are tiny members of the tubeworm family, barely 2-3 inches across.  Like all tubeworms, they capture their food with their numerous "feathers", which act in a similar way as a fine-mesh net, capturing its food and then channeling it downward to its mouth.  Very beautiful, though tiny, creatures.