Goniocidaris corona Baker, 1968
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 are not.
Echinodermata (Phylum) > Echinozoa (Subphylum) > Echinoidea (Class) > Cidaroidea (Subclass) > Cidaroida (Order) > Cidaridae
(Family) > Goniocidaris
(Genus) > Aspidocidaris
(Subgenus) > corona (Species)
From 5-130 metres