Snakelocks anemone shrimp - May 2020

Periclimenes sagittifer
A blue shrimp, often called the Snakelocks anemone shrimp, because that this where this animal is found.
It has a restricted distribution range with UK sightings limited to warmer south coast spots.
I photographed this one under Swanage pier.

Olympus E -M10, Panasonic 45mm macro lens