41° 9' 44" North . 8° 41' 9" West
Reddish-brown hardwood with interesting color contrasts. Distinctive feeding tunnels – probably by mussels or snails.
- Found: Atlantic Ocean . Portugal . March 2011
- Length: 66,5 cm . Width: 10 cm . Depth: 2,4 cm
- Number of Magnets: 7 Pieces