Ensis minor
Ensis minor, or the jackknife clam, is a long, smooth-shelled, burrowing clam found in the Atlantic Ocean. These clams are often collected for food. Ensis minor can grow up to in length. It is white, sometimes with reddish-brown markings. <div align=center> Right and left valve of the same specimen: </div align=center> References Pharidae Commercial molluscs