Within the Order of Cods (Gadiformes) is the Family Moridae, also known as Beardies, or rock cods.
They are a large family of fish that are found across the world. Their bodies taper to a narrow point and they usually have long dorsal fins. They also have a chin barbell as illustrated in the picture on the right.
In Australia there are 24 recognised species of Beardies. The most common one that is often seen in Sydney, hiding in overhangs, is the Large-Tooth Beardy (Lotella Rhacina).