A parasitic lamprey found in Europe and North America, Petromyzon marinus.

There are many more potential opportunities available.

The plant Eryngium maritimum. / More generally, any of several species of plants in the genus Eryngium. / The plant Acanthus ebracteatus.

plural of sea dog

plural of sea-dog

A day on which a cruise ship remains at sea all day (i.e. passengers cannot leave the ship).

plural of Dead Sea apple

plural of sea cucumber

A lake in northern Israel, located about 15 miles (24 km) northeast of the ancient city of Nazareth.

plural of sea lamprey