Arms 5, arm rays merge with disc, pentagonal. Up to 20 large plates around the edge between arm tips. Plates on oral surface underneath near the mouth with dense granules. Centre to arm tip up to 8 cm.
This large biscuit star is rarely seen and little is known of its biology.
Sub-tidal rocks and sediment, to depth of 200 m.
Native to Australia
- DSE Advisory List : Not listed
- EPBC Act 1999 : Not listed
- IUCN Red List : Not listed