The taxonomic status and identification of the deep-sea sharks of the genus Deania have been controversial mainly due to morphological similarities between some of its species. The aim of this work was to update the taxonomic status of Deania hystricosa

This is the first work describing some biological aspects of the arrowhead dogfish, Deania profundorum. The specimens were captured in two surveys (2004–2005) between 151 and 1200 m off the Madeira archipelago (north-east Atlantic Ocean). A total of 351

Three elasmobranch species of the genus Deania are currently reported in NE Atlantic waters: D. calcea, D. hystricosa and D. profundorum; however, in north Spanish waters (NE Atlantic), only D. calcea and D. profundorum have been caught. Among the criteria