Also known as Nudibranch.
Found singly or in pairs amongst grass, mud, rubble and sand often buried in the substrate for protection over intertidal zones of bays and lagoons.
They feed on algae and plants.
When predators come too close they will discharge a purple fluid to warn them off.
Length - ?cm
Depth - ?m
Opisthobranchia - Nudibranchs - Sea Slugs meaning "naked gills" are molluscs without a hard shell. Ref: https://en.wikipedia.org/wiki/Aplysia