what are these shells i found fishing

[sparrow75]

you got a picture?

[slowride]

sorry no pic

[apb]

Sounds like an aquatic snail. No hazard to fish, if that is the case. Mussel shells are similar to clam shells.

Andrew

[birdstrike]

Worried me for a second thinking you had come across some zebra muscles. Luckily the one's you found are too big, Zebras don't get any bigger than a fingernail.