The cod is a relatively large and stout bodied fish with a large head and long chin barbel. It has three dorsal fins and two anal fins which are all rounded in outline. The colour can vary from greenish-grey with orange-brown or grey mottling. It has a conspicuous white lateral line. Adult fish can grow to approximately 1.7m although most are less than 1.2m. The large head, stout body, mottled coloration and distinctive white lateral line distinguish the cod from other members of the cod family.