Complex sentence: Adriatic braceras differ from the boats carrying same/similar names e.g. in the Aegean Sea, since in the Adriatic the term refers to the whole boat, the system that consists of both the hull and the rig and not merely the sail.
Split into simpler sentences: Adriatic braceras differ from the boats carrying same/similar names like, for example, in the Aegean Sea. Unlike there, in the Adriatic the term refers to the whole boat, the system that consists of both the hull and the rig and not merely the sail.