- Kingdom: Animalia
- Phylum: Echinodermata
- Subphylum: Echinozoa
- Class: Echinoidea
- Order: Camarodonta
- Family: Parechinidae
- Scientific name: Strongylocentrotus droebachiensis
- Norwegian: drøbakkråkebolle
Characteristics:
This medium sized, regular sea urchin may reach a diameter of 8 cm. The profile is flattened. The shell and spine color is usually white, green or brown. The primary and secondary spines are of approximately the same lengths.
Habitat:
It can be found on any depth from the subtidal zone and down to 1200 metres.
Distribution:
It is widespread over virtually the entire northern hemisphere.


