Crested Oystergoby

Cryptocentroides gobioides, the crested oystergoby, is a species of goby native to eastern Australia. Often found in estuaries and brackish waters, in muddy situations at depths of from 1 to 10 metres (3.3 to 32.8 ft). This species can reach a length of 12 centimetres (4.7 in). A small dark fish, with some red, blue bands or spots. There is a pronounced dorsal ridge of the fish, and the head has a bulbous appearance.