''Tesseropora rosea'', the rose barnacle is a species of

barnacle A barnacle is a type of arthropod constituting the subclass Cirripedia in the subphylum Crustacea, and is hence related to crabs and lobsters. Barnacles are exclusively marine, and tend to live in shallow and tidal waters, typically in eros ...

found in eastern and southern Australia, and South Africa. The hard exterior is grey to whitish with four shell plates. Larger specimens show a pinkish colour. Size is 20 millimetres across to 12 millimetres tall. The habitat is exposed rocky shores, from high tide levels to a depth of 58 metres. The diet is

plankton Plankton are the diverse collection of organisms found in Hydrosphere, water (or atmosphere, air) that are unable to propel themselves against a Ocean current, current (or wind). The individual organisms constituting plankton are called plankt ...

and small particles. This barnacle can tolerate strong wave activity.

References

Barnacles Crustaceans described in 1848 {{crustacean-stub