It seems that you only included the rivers that flow directly into the sea, excluding those that flow into another river. This is not clear in the title. Like, the instruction adds a weird caveat contradicting the title.
Otherwise the Marne, Lot, Saône, Doubs, Allier, Tarn, Vienne, Cher, Aisne, Oise, Durance, Loir, Moselle, Sarthe, Yonne, Aveyron, Isère and probably a dozen other ones would make the cut.
It seems that you only included the rivers that flow directly into the sea, excluding those that flow into another river. This is not clear in the title. Like, the instruction adds a weird caveat contradicting the title.
Otherwise the Marne, Lot, Saône, Doubs, Allier, Tarn, Vienne, Cher, Aisne, Oise, Durance, Loir, Moselle, Sarthe, Yonne, Aveyron, Isère and probably a dozen other ones would make the cut.