lepidopus āļāļ·āļāļāļ°āđāļĢ lepidopus āļāļ·āļāļāļ°āđāļĢ In ichthyology, the typieal genus of LepidopodidÃĶ, having scale-like appendages in the place of ventral fins, whence the name.A genus of crustaceans.