Australian Biological Resources Study

Australian Faunal Directory


Regional Maps


Compiler and date details

July 2012 - Tim O’Hara, Museum Victoria

F.W.E. Rowe & J. Gates, Australian Museum, Sydney, New South Wales, Australia (1995) Updated (2001) by Tim O'Hara, Museum Victoria, Carlton, Victoria, Australia


The Poraniidae are a family of seven genera recorded from cold temperate to boreal seas. One genus with a single species is recorded herein from Australian waters, although a second species, identified doubtfully as Marginaster cf paucispinus Fisher, 1913 (a South China Sea species) by A.M. Clark (1962) is recorded from off Maria Is., Tasmania.

Poraniids are distinguished from other asteroid families within the order Valvatida by the following combination of character states: arms five; body form stellate to pentagonal; marginals varying from prominent, more or less overlapping, smooth, or with few spines, to absent; aboral skeleton loosely tessellate or reticulate, covered by skin which is smooth, granulose, or spinulose; interbrachial septa reinforced by vertical plating unless entire skeleton is reduced. Extreme forms may have no solid skeleton except some axial elements.


History of changes

Note that this list may be incomplete for dates prior to September 2013.
Published As part of group Action Date Action Type Compiler(s)
15-Sep-2023 04-Dec-2012 MODIFIED
12-Feb-2010 (import)