Chelonia mydas, a large sea turtle, the only species of the genus Chelonia.

A small species of sea lion, Zalophus wollebaeki (though sometimes considered a subspecies of the Californian sea lion), that breeds in the Galápagos islands.

A marginal sea east of China, south of the Korean Peninsula, west of the Ryukyu Islands, and north of Taiwan.

Sea, ocean, open sea.

There are many more potential opportunities available.

Any of a group of cnidarians, of the order Alcyonacea ( <= Gorgonacea), that form flexible colonies with few branches

plural of Dead Sea apple

plural of Galápagos sea lion

plural of green sea turtle

A sea lion, Zalophus japonicus, inhabiting the Sea of Japan, thought to have become extinct in the 1950s.