species: Aquilonastra anomala in ALA: LIRS and surrounds using records to Oct. 2021 (Lizard Island Field Guide)
Aquilonastra anomala

©Lyle Vail: Aquilonastra anomala less than 1 cm diameter from under rubble at MacGillivray Reef near Lizard Island.

©Anne Hoggett: Aquilonastra anomala found on underside of rubble slab as shown, less than 15 mm diameter, near reef crest off South Island, Lizard Island Group (18 Jan 2015).

©Anne Hoggett: Underside of Aquilonastra anomala at Lizard Island (18 Jan 2015)
Kingdom Animalia
Phylum Echinodermata
Class Asteroidea
Order Valvatida
Family Asterinidae
Genus Aquilonastra
Species Aquilonastra anomala



Distinguishing features

A small asymmetrical, fissiparous starfish with relatively long, often splay-pointed abactinal spinelets. Mottled colouration.


  • Up to 1.2 cm (longest radius according to O'Loughlin and Rowe, 2006)

Depth range

  • Depth range data is not yet available.



©Atlas of Living Australia: Australian distribution

Web resources


References that assist with identification

  • Marsh, L.M. and J. Fromont (2020). Field Guide to shallow water seastars of Australia. Western Australian Museum, Perth.
  • O'Loughlin, P.M. and F.W.E. Rowe (2006). A systematic revision of the asterinid genus Aquilonastra O╩╝Loughlin, 2004 (Echinodermata: Asteroidea), Memoirs of Museum Victoria, 63(2): 257-287. LIRS catalog number 90268.