32-45 scales on the lateral line, less than the Rock Goby. Talk on this subject. Rock Goby, Gobius paganellus . Spring around the British coasts. The eggs are laid on the underside of rocks and shells, usually in shallow water below low water mark, but also in large estuaries where the salinity may be reduced.
Male fish turns a blacker tinge when guarding the nest.
This is a considerably less time than G. paganellus . In sandy and muddy areas, usually with rock as well, below low water mark and sometimes found intertidally in large pools. The adults are found at low water mark in late summer and autumn, and occasionally under rocks in spring. Small crustaceans, worms, small fish. Off all the coasts of Britain and further afield, Baltic, in the shallow seas off the coast of southern Norway, France, Spain, Portugal, temperate Africa, Mediteranean., Black Sea.