Comb Bittersweet

Comb Bittersweet
Tucetona pectinata (Gmelin, 1791)
Family Glycymerididae

The Comb Bittersweet shells in my collection are worn. I have several very old ones that were buried in the mud and have turned brown or black. The Comb bittersweet is not as common as the other bittersweets in my collection.