DSC_5581 Blue mussel, or toretore (Mytilus galloprovincialis) attached to rock by byssus threads. Very common in parts of South Island, less common in the North. Otago Harbour *
DSC_5566 Blue mussel, or toretore (Mytilus galloprovincialis) detail of byssus threads. Very common in parts of South Island, less common in the North. Otago Harbour *
