PORT PHILLIP BAY


Seastar 

Plectaster decanus (Müller & Troschel, 1843)

View scientific description and taxonomy

Scientific Details

See below for information.

Taxonomy

Phylum:
Echinodermata
Class:
Asteroidea
Order:
Spinulosida
Family:
Echinasteridae
Genus:
Plectaster
Species:
decanus

General Description

Arms 5, arms merging into a large disc. Surface covered with a mosaic of raised granules with raised orange lattice and lower dark red to purple surface. Centre to arm tip up to 6 cm.

Biology

This sea star is rarely seen and little is known of its biology.

Habitat

Amongst rocks and algae in sub-tidal areas, to depth of 200 m.

Reefs

Distribution guide

Southern Australia.

Species Group

Seastars and allies Sea stars

Depth

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

Water Column

On or near sea floor

Max Size

12 cm

Diet

Carnivore

Commercial Species

No

Global Dispersal

Native to Australia

Species Code

MoV 2661

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, Plectaster decanus, in Taxonomic Toolkit for marine life of Port Phillip Bay, Museum Victoria, accessed 19 Sep 2017, http://portphillipmarinelife.net.au:8098/species/4845

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