text: Shore Rockling - Gaidropsarus mediterraneus - juvenile. Length to 40cm<br /> Elongated, eel-like fish; head has 3 barbels. Found on lower shore, under rocks and in pools. Adult is dark brown overall, paler below than above. Head has 3 barbels. Fin arrangement is similar to that of Five-bearded. Local, SW only. NOTE Young of this species, and other rocklings, are known as ‘mackerel midges’ and are greenish above, silvery below; they are found among drifting seaweed rafts, and tangled hiding places on the seabed.