Echinus acutus

Systematics :

Kingdom: Animals (Animalia)
Phylum: Echinoderms (Echinodermata)
Class: Sea urchins (Echinoidea)
Order: Diadematoidea
Family: Echinidae
Genus: Echinus
Species: Echinus acutus

Norwegian name: Langpiggsjøpiggsvin

Confusion species: Echinus esculentus