The slender goby has a mottled brownish to beige body with a dark blotch under its eye and a series of rectangular marks along its side. It feeds on small invertebrates, especially crustaceans, and measures up to 16cm at most. It lives on sandy and muddy bottoms close to Posidonia seagrass beds down to 30m below the surface. It is endemic to the Mediterranean and is rarer in the southern part.
Scientific name: Gobius geniporus
French: Gobie génipore
Italian: Ghiozzo geniporo