Annotated checklist of the fishes of the archipelago of Madeira (NE Atlantic): I-Chondrichthyes

As part of an annotated checklist of fishes of the archipelago of Madeira, a list with all cartilaginous fishes recorded from the archipelago is presented. The list contains 67 species of sharks, rays and chimaeras, whose presence in the area the authors consider confirmed. Another 14 species previously referred for the area are now considered dubious records and five species are withdrawn from the list. Centrophorus uyato is here recorded for the first time from Madeira. Three species (Mitsukurina owstoni, Odontaspis noronhai and Chimaera opalescens) are so far only present in Madeira within Macaronesia. The 67 confirmed species are based on occurrences, substantiated by specimens in natural history museum collections or other published evidence. For all species, the first reference is given, as well as other relevant references for the archipelago and remaining Macaronesia.