The scale item is about 50mm diameter, so the kina must have been about 160mm diameter.
A sea urchin (Heliocidaris sp.)
A Blue Sea Star (Linckia laevigata) in shallow water
POV of a Blue Sea Star (Linckia laevigata) resting on hand
A Blue Sea Star (Linckia laevigata) resting on sand
Eleven-armed Sea Star (Coscinasterias muricata)
Echinoderms (Phylum Echinodermata from Greek, ἐχῖνος, echinos – "hedgehog" und δέρμα, derma – "skin") are a phylum of marine animals. The adults are recognizable by their (usually five-point) radial symmetry, and include such well-known animals as starfish, sea urchins, sand dollars, and sea cucumbers. Echinoderms are found at every ocean depth, from the intertidal zone to the abyssal zone. The phylum contains about 7000 living species, making it the second-largest grouping of deuterostomes (a superphylum), after...