Other Names

• Estuarine Acorn Barnacle

General Description

Six smooth side plates around the body with a diamond shape opening. Outer plates white with purple-brown cross-hatched pattern. Plates in the opening (scuta) have growth lines and two radiating purple bands. Up to 25 mm high, 2 cm wide.

Biology

This species can tolerate silt and fluctuating salinity.

Habitat

Estuaries and sheltered bays, 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

3 cm

Diet

Plankton or Particles

Commercial Species

No

Global Dispersal

Recorded in Australia

Species Code

MoV 1002

Identify

• Barnacles

Conservation Status

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