General Description

Six green to white side plates, often eroded or encrusted with algae growth. Inner surface of plates blue. Up to 6 cm high, 3 cm wide.

Biology

This is the largest acorn barnacle species in Australia. They usually attach to rocks, but sometimes live on abalone, chitons and the hulls of ships.

Habitat

Exposed rocky shore, near low tide level, to depth of 9 m.

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

6 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