Family Oxynotidae Oxynotus centrina (Linnaeus, 1758) — No common name in Madeira; Angular roughshark Lowe 1838: 194 (as Centrina Salviani) Noronha & Sarmento 1934: 137 | Nobre 1935: 444 (as Centrina centrina) Ebert & Stehmann 2013: 122. Distribution in Macaronesia. possibly Madeira archipelago, Canary Islands (Brito et al. 2002; Brito Hernández & Sancho Rafel 2003) and Cape Verde (Reiner 1996, 2005). Remarks. Since no specimens or other material from Madeira were found in natural history museum collections, at this point, the presence of this species is considered as subject to confirmation. Oxynotus paradoxus Frade, 1929 —No common name in Madeira; Sailfin roughshark Quéro 1984d: 127 | Carneiro et al. 2014: 14 | Ebert & Stehmann 2013: 124 Distribution in Macaronesia. possibly Madeira archipelago, Azores (Santos et al. 1997; Azevedo et al. 2003; Carneiro et al. 2014), Canary Islands (Ebert & Stehmann 2013) and Cape Verde (Hanel & John 2014, but with no specimens). Remarks. since no specimens or other material from Madeira were found in natural history museum collections, at this point, the presence of this species is considered as subject to confirmation.

Published as part of Biscoito, Manuel, Ribeiro, Cláudia & Freitas, Mafalda, 2018, Annotated checklist of the fishes of the archipelago of Madeira (NE Atlantic): I-Chondrichthyes, pp. 459-494 in Zootaxa 4429 (3) on page 485, DOI: 10.11646/zootaxa.4429.3.2, http://zenodo.org/record/1285016