The South African mullet, also called a harder mullet or simply harder, is a species of mullet. It is found in South African coastal waters from Walvis Bay (Namibia) to KwaZulu-Natal, and grows to a maximum length of 40.5 cm (15.9 in). The person the specific name honours was not recorded by Andrew Smith when he described this species but it is most likely to be John Richardson (1787-1865), the Scottish naturalist, surgeon and Arctic explorer.