THESAURUS
deep sea
Bassalian, abyssal, aquatic, balneal, bathyal, bathybic, bathymetric, bathyorographical, bathypelagic, bathysmal, benthal, benthonic, benthopelagic, blue-water, deep-water, estuarine, grallatorial, hydrographic, littoral, marine, maritime, natant, natatorial, natatory, nautical, oceanic, oceanographic, pelagic, seashore, shore, swimming, terriginous, thalassic, tidal, water-dwelling, water-growing, water-living, water-loving
