1, the classification is different: goby refers to half-smooth tongue sole, belonging to the plaice order, tongue sole family, tongue sole genus, half-smooth tongue sole species, and cuttlefish refers to squid, belonging to the order of squid, squid, squid family, squid species.

2, the growth of different environments: goby belongs to the offshore large benthic warm temperate animals, inhabiting the dry muddy sandy seabed, and cuttlefish mainly live in the shallow waters of the tropical and temperate coasts, and in winter, often move to the deeper waters.