Hulley, P.A. (1970)
An investigation of the Rajidae of the west and south coasts of southern Africa. Annals of the South African Museum, 55(4), 151–220

Hulley, P.A. (1972)
The origin, interrelationships and distribution of southern african Rajidae (Chondrichthyes, Batoidei). Annals of the South African Museum, 60(1), 1–103

Krefft, G. (1978)
Fischtypen in der Sammlung des Institutes für Seefischerei, Hamburg. Mitteilungen aus dem Institut für Seefischerei Hamburg, 25, 1–20

Hulley, P.A. (1986)
Families Rajidae, Anacanthobatidae In Smith's Sea Fishes, by M.M. Smith & P.C. Heemstra, eds. Macmillian, Johannesburg: 115–128

Smith, M.M. & Heemstra, P.C. (1986)
Smiths' Sea fishes Braamfontein, Johannesburg :Macmillan South Africa,1986.