Pachycerianthus longistriatis Click to enlarge image
Tube Anemone, Pachycerianthus longistriatis Image: Dr Isobel Bennett
© Australian Museum

Fast Facts

  • Classification
    Species
    longistriatis
    Genus
    Pachycerianthus
    Family
    Cerianthidae
    Order
    Ceriantharia
    Subclass
    Hexacorallia
    Class
    Anthozoa
    Phylum
    Cnidaria
    Kingdom
    Animalia
  • Size Range
    10 cm

Introduction

The Tube Anemone lives in a mucous tube in the seabed.

Identification

The Tube Anemone is common in the sediments of Sydney Harbour. Its outer tentacles vary in colour from purple to creamy brown and each has a long pale stripe down its length. The inner tentacles are usually a creamy colour.

Habitat

Tube Anemones live in coastal waters, estuaries and soft seabeds.

Distribution

The Tube Anemone is found in New South Wales.

Other behaviours and adaptations

The tentacles of the Tube Anemone reach out of the tube and capture small animals using stinging cells (nematocysts). The main body of the animal is not attached to the tube and can retract rapidly when threatened. Divers often see the anemone disappearing into the sediment as they approach for a closer look.