Azure, a sea serpent ondoyant-emergent sable, fimbriated Or, overall a trident with a laurel wreath entwined in its tines or. Calafia, Barony of (8/1979 Caid)
Azure, semy of flanged maces argent, a sea-serpent ondoyant to sinister Or. Guillaume MacMaelMicheil (7/1991 Caid)
Or, in pale a sea serpent nowed and a laurel wreath vert, a bordure embattled gules. Saint Christina the Astonishing, College of (2/1991 West)
Per bend argent and azure, a sea serpent embowed counter-embowed counterchanged. Liadain Meredydd (5/1992 West)
Per fess azure and gules, on a fess wavy Or a sea-serpent ondoyant sable. Ormar Traherne (5/1993 Calo)
Per fess azure and vert, a sea-serpent ondoyant and a point pointed argent, in sinister chief a mullet Or. Galen O'Loingsigh (5/1993 Trim)
Per fess sable and argent, a sea serpent ondoyant within a bordure wavy counterchanged. Ivan the Illustrated (9/1988 Caid)
Per saltire vert and azure, a sea serpent glissant and in chief three escallops inverted Or. Séadna O Bainain (8/1989 Midd)