Psammechinus miliaris

Systematics :

Kingdom: Animals (Animalia)
Phylum: Echinoderms (Echinodermata)
Class: Sea urchins (Echinoidea)
Order: Echinoida
Family: Parechinidae
Genus: Psammechinus
Species: Psammechinus miliaris

Other names: tangsjøpiggsvin

Norwegian name: Grønnsjøpiggsvin