Nope, no where in any section of the game is that creature defines as Leviathan, it does not even look like Leviathan from the in-game files and concept art. Also not to mention all Summons are defined specifically as a group in the data files and this creature is not part of that definition. The creature is stated as "Sea Serpent" by both In-Game NPC's as well as by the developers. learnthelore?
