Are these typically mussels or clams.
Pretty sure they're mussels. I caught a 7-pound Blue this spring from one of the bigger lakes around here, and I decided to keep it (had never ate blue cat before). Inside its stomach was a black mussel, about 3" long, 1.5" wide, and was jet black in color. It had an elongated, almost rectangular shape to it, but for the life of me, I can't find it on google. It could've been black due to the digestive juices doing their work, which is making it hard to identify. The biggest hurdle to getting them for pond stocking is that they are illegal to even possess in North Carolina, largely in part due to more than half of the mussel species in the state are endangered or close to being endangered. Definitely a favorite food for BC, but it's not looking like I can get some here.
