a1746 E. Holdsworth (1768) 400 There could be no fleet lying there, no sea-marshes, no lines drawn across them to intercept communication.
1835 J. J. Audubon III. 241 The Long-billed Curlew spends the day in the sea-marshes.
1982 ‘J. Gash’ vi. 65 The sea marshes show between the long runs of banks and dykes.