The transparent goby is almost transparent so you can see its silvery swim blather and other organs. It lives in schools in free water, just below the surface. Therefore many divers will not see them. It also has the characteristic connected pelvic fins, like all gobies. Mating is from March to August, and the eggs are laid on hard substrata.
According to the literature maximum 60 mm long. Specimens up to 90 mm have been recorded by fishermen.
Almost transparent with pigmentation on the head.
In the free water inshore and in lagoons.
Eastern Atlantic from Norway to the Mediterranean and Black sea.