Gomes-Pereira, José N.Gonçalves, João M.Clarke, M. R.2017-02-222017-02-222016"ARQUIPÉLAGO. Life and Marine Sciences". ISSN 0873-4704. Nº 33 (2016): 1-120873-4704http://hdl.handle.net/10400.3/3989This work is a combination of unpublished cephalopod identification keys compiled by Malcolm R. Clarke for the Azores region (Central North Atlantic) and a review of the Octopoda of the Azores by João Gonçalves (MSc Thesis 1993, originally written in Portuguese), updated with recent literature. A regional list of cephalopod species of the Azores is provided totaling 83 species, with identification keys for: i) Histioteuthidae, including five species; ii) Cranchiidae, including eleven species; and iii) Octopodiformes, including Vampyroteuthis infernalis Chun, 1903 (Order Vampyromorpha), three cirrate and fourteen incirrate octopuses. Separate keys are given for Octopodiformes species. The revisions are discussed and a more detailed description of Octopoda species is included.engAtlanticAzores ArchipelagoCephalopodsIdentification KeyCheck-listjournal article