Erstbeschreibung: Boulenger, George Albert. 1898. „Report on the fishes recently obtained by Mr. J. E. S. Moore in Lake Tanganyika“. Proceedings of the Zoological Society of London. vol. 3: pp. 494-497
Typusart: Plecodus paradoxus BOULENGER 1898
Beschriebene Arten:
Plecodus eccentricus LIEM & STEWART, 1976
Plecodus multidentatus POLL, 1952
Plecodus paradoxus BOULENGER, 1898
Plecodus straeleni POLL, 1948