General Description

Four side plates, forming a wide conical shape. Colour varies, including white, grey or purple. Opening diamond shape. Up to 1 cm high, 3 cm wide.

Biology

These barnacles attach to shaded rock surfaces, such as crevices where they are protected from waves. They also attach to abalone or mussel shells.

Habitat

Sheltered areas of rocky shores, at mid to high tide levels.

Reefs

Coastal shores

Distribution guide

New Zealand and southern Australia.

Species Group

Barnacles › Acorn barnacles

Depth

Shore (0-1 m)
Shallow (1-30 m)

Water Column

On or near sea floor

Max Size

3 cm

Diet

Plankton or Particles

Commercial Species

No

Global Dispersal

Recorded in Australia

Identify

• Barnacles

Conservation Status

• DSE Advisory List : Not listed
• EPBC Act 1999 : Not listed
• IUCN Red List : Not listed