Seabeastius

• sebastos (Greek) venereable. reverend, august; Greek name for Augustus, whose wife was Livia (ALP). It is also worth noting that Livia was regarded to be as much a part of the Roman government as Augustus and to also be truly loved by Augustus as more than a political marriage, perhaps tying into Joyce's choice of Livia's name to insert into the name of Anna Livia Plurabelle.
• sea beast: the Leviathan