PORT PHILLIP BAY


Eleven-armed Seastar 

Coscinasterias muricata Verrill, 1867

View scientific description and taxonomy

Scientific Details

See below for information.

Taxonomy

Phylum:
Echinodermata
Class:
Asteroidea
Order:
Forcipulatida
Family:
Asteriidae
Genus:
Coscinasterias
Species:
muricata

General Description

Arms typically 11, frequently of different lengths. Body pattern mottled with combinations of blue brown, grey, green, cream, orange, red, mauve, white. Centre to arm tip up to 25 cm.

Biology

This is one of the largest seastars in Victorian waters. It has fissiparous reproduction where the animal divides in two to create new individuals. Its arms are usually of different lengths because of regeneration due to lost or damaged arms.

Habitat

Rock and sandy areas, under rocks and in the open, to depth of 150 m.

Reefs

Soft substrates

Distribution guide

Southern Australia.

Species Group

Seastars and allies Sea stars

Depth

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

Water Column

On or near sea floor

Max Size

50 cm

Diet

Carnivore

Commercial Species

No

Global Dispersal

Recorded in Australia

Species Code

MoV 1645

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, Eleven-armed Seastar, Coscinasterias muricata, in Taxonomic Toolkit for marine life of Port Phillip Bay, Museum Victoria, accessed 23 Oct 2017, http://portphillipmarinelife.net.au:8098/species/7769

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