PORT PHILLIP BAY


Seastar 

Smilasterias irregularis Clark, 1928

View scientific description and taxonomy

Scientific Details

See below for information.

Taxonomy

Phylum:
Echinodermata
Class:
Asteroidea
Order:
Forcipulatida
Family:
Asteriidae
Genus:
Smilasterias
Species:
irregularis

General Description

Arms 5, readily lost if disturbed. Body pattern mottled reds and cream. Centre to arm tip up to 7 cm.

Biology

This rarely seen species readily loses arms if disturbed by predators. The arms then regenerate which is why this sea star is often seen with different sized arms.

Habitat

On rocky substrates, to depth of 30 m.

Reefs

Distribution guide

South-eastern Australia.

Species Group

Seastars and allies Sea stars

Depth

Shallow (1-30 m)

Water Column

On or near sea floor

Max Size

14 cm

Diet

Carnivore

Commercial Species

No

Global Dispersal

Native to Australia

Species Code

MoV 2662

Identify

Conservation Status

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

Author

article author O'Loughlin, P. M.

Mark O'Loughlin is an Honorary Associate in marine invertebrates at Museum Victoria.

citation

Cite this page as:
O'Loughlin, P. M., 2011, Seastar, Smilasterias irregularis, in Taxonomic Toolkit for marine life of Port Phillip Bay, Museum Victoria, accessed 29 Jun 2017, http://portphillipmarinelife.net.au:8098/species/4847

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