and Sword. . See also Caligula's Giant Ship Nemi ships Roman shipyard of Stifone (Narni) Notes References External links The Imperial fleet of Misenum The Classis Britannica The Roman Fleet, Roman-Empire.net The Roman Navy: Masters of the Mediterranean, HistoryNet.com Galleria Navale on Navigare Necesse Est Port of Claudius, the museum of Roman merchant ships found in Fiumicino (Rome) Diana Nemorensis'', Caligula's ships in the lake of Nemi. Römisch-Germanisches Zentralmuseum Mainz: The Fleets and Roman Border Policy Forum Navis Romana Navy