dorsal fin, sting ray, moray eel, nudibranch, lanternfish, mudflat, cove, porpoise, suckerfish, ocean, manta ray, sperm whale, fiddler crab, remoras, gunnel, spume, ocean sunfish, uvula, fiord, lagoon, eagle ray, sea lion, moray, stonefish, pectoral fin, whale, fringing reef, fin, finback, snorkel, barbels, thresher shark, silversides, tidepool, snout, pelvic fin, inlet, baleen, bluebottles, dolphin, manta, sculpins, spiracles, kelp, briney, toadfish, gill, orifices, nematocysts, harbor porpoise, headland, bather, radula, gunwale, surfperch, finless, chest cavity, brookie, waterfall, shallows, billabong, plastron, conning tower, aqualung, hawser, seamount, belugas, finback whale, goby, humpback whale, reef, basking shark, sandbank, isopods, fishies, gorgonians, sandworm, pinnipeds, rockface, gopher snake, sandbar, cragged, blenny, beaked whale, snowfield, damselfish, intertidal, hammerheads, spiny anteater, bathysphere, carapace, tubercles, fjord, seawards, promontories, volcanic crater, downstroke, bronchial tubes, waterspout, mouthparts, coral reef, cenote, archway, boiler, diamonds, ditch, entrances, flowers, flue, frame, hollow, locket, lozenge, skylight, amphitheater, anus, apertures, arbor, basin, bays, beds, bend

smoke hole

blow, whale

airway, air duct, air passage, blower, cetacean, cetacean mammal

hole, spiracle

vent, venthole