The MEDWAVES (MEDiterranean out flow WAter and Vulnerable EcosystemS) cruise targeted areas under the potential influence of the MOW within the Mediterranean and Atlantic realms. These include seamounts where Cold-water corals (CWCs) have been reported but that are still poorly known, and which may act as essential “stepping stones” connecting fauna of seamounts in the Mediterranean with those of the continental shelf of Portugal, the Azores and the Mid-Atlantic Ridge. One of this target areas is the guyot named El Seco de los Olivos (Chella Bank); where six ROV videos transects were conducted between 282 and 793 m depth to explore the deep-sea macrobenthic communities. Here we present the identification catalogue for deep-sea fauna.