[3] The fossil record of this species dates back to the Miocene (age range: 13.65 to 0.012 million years ago).

[4] The rounded shell is thin and polished and brownish-yellow, with a row of reddish markings just below the suture of the last whorl.

[5][2] The large necklace shell is found on the coasts of Northwest Europe, from the Mediterranean Sea to the Skagerrak and in the Northeast Atlantic Ocean.

[6] The large necklace shell lives buried in the sand and gravel of the lower shore and the neritic zone to depths of 125 metres.

[2] Egg capsules are laid in a spirally wound collar of jelly embedded with sand grains.