No subspecies of the southern bottlenose whale are named (Mead 1989). The blubber of the bottlenose whale is not fit for food, as it gives diarrhea. The biggest threat to the southern bottlenose whale has been whaling (Mitchell, 1975). Seldom observed, the southern bottlenose whale is resident in Antarctic waters. The southern bottlenose whale has a circumpolar distribution in the Southern Ocean. The southern bottlenose whale feed mainly on squid and krill.