Strongylocentrotus droebachiensis - Green sea urchin - Witpunt zee-egel

Strongylocentrotus droebachiensis  (O.F. Müller, 1776)

Purple sea urchin

Cottam Point, Vancouver Island, Canada, 23-7-2012. Specimen A.

Cottam Point, Vancouver Island, Canada, 23-7-2012. Specimen A.

Salvage, Newfoundland, Canada, 4-8-2010.

Salvage, Newfoundland, Canada, 4-8-2010.

Salvage, Newfoundland, Canada, 4-8-2010.

Salvage, Newfoundland, Canada, 4-8-2010.

Salvage, Newfoundland, Canada, 4-8-2010.