Fitzmaurice, P. (1979)
Tope, Galeorhinus galeus (L), migrations from Irish coastal waters and notes on Irish specimens. In Report of The Inland Fisheries Trust 1979: 26–33
Fitzmaurice, P. (1974)
Size Distribution and Food of Thornback Rays (Raja clavata L) Caught on Rod and Line on the Mayo Coast. Irish Fisheries Investigations Series B, Department of Agriculture and Fisheries, 11, 1–19