Huge Seashell Collection Lot!! 6 Polinices Didyma Moon Snail Sea Shells from Florida Beaches The biggest is 1.75 ins at longest and 1.5 ins wide 1 cowrie seashell from Florida Beaches approximately. .63ins 4 snail fossils POSSIBLY all from Florida Beaches longest is 1.5 ins 1 shark tooth from Florida Beaches .38 ins long 15 Auger Seashells from Florida Beaches longest is 1.25 ins