Patiriella regularis (Verrill, 1867)
This is not a Mollusc. Other non-Molluscan Phyla (Echinodermata, Brachiopoda etc) have been included to help identify species that may be mistaken for Mollusca, but actually are not.
Echinodermata (Phylum) > Asterozoa (Subphylum) > Asteroidea (Class)
> Valvatida (Order)
> Asterinidae (Family)
> Patiriella (Genus)
North and South Islands, and Chatham Islands. Has spread to southern Australia and Tasmania
Cushion Star. Marine, Endemic. 5 arms, sometimes 4 or 6, colour highly variable, sometimes mottled. Intertidal to sublittoral