sea slug, nudibranch
['barracouta, snoek', 'nail', 'snorkel', 'leatherback turtle, leatherback, leathery turtle, Dermochelys coriacea', 'hen-of-the-woods, hen of the woods, Polyporus frondosus, Grifola frondosa', 'feather boa, boa', 'tench, Tinca tinca']