BISCOITO, MANUEL, CLÁUDIA RIBEIRO, and MAFALDA FREITAS. “Annotated Checklist of the Fishes of the Archipelago of Madeira (NE Atlantic): I—Chondrichthyes”. Zootaxa 4429, no. 3 (June 7, 2018): 459–494. Accessed November 27, 2021. https://www.mapress.com/zt/article/view/zootaxa.4429.3.2.