Argent, two tridents in saltire sable, overall a natural seahorse erect vert. Tybalt de Moriton (5/1990 AnTi)
Azure, a stag's head cabossed and in base two tridents in saltire argent. Atlantia, Kingdom of (6/1981 Atla)
Azure, in pale an escallop and two tridents in saltire, all within a bordure argent. Tristan Alexander (5/1990 Atla)
Azure, in pale two tridents in saltire argent and a majuscule blackletter "M" Or. Marinus, Barony of (3/2009 Atla)
Azure, on a pile throughout between two tridents argent an anvil reversed sable. Padruig an Mhuilinn Gordan (4/1996 Midd)
Azure, two tridents in saltire Or and overall a sea-wolf argent tailed vert, a bordure argent. Argos Spartiates (10/2010 Anst)
Azure, two tridents in saltire, overall a fleur-de-lys, a bordure Or. Leopold Draco (4/2010 East)
(Fieldless) Two tridents crossed in saltire argent surmounted by an escallop erminois. Atlantia, Kingdom of (2/1985 Atla)
(Fieldless) Two tridents in saltire and overall a tower sable. Illiton, Barony of (4/2006 Midd)
(Fieldless) Two tridents in saltire argent, overall an anvil reversed sable. Padruig an Mhuilinn Gordan (4/1996 Midd)
(Fieldless) Two tridents in saltire sable. Illiton, Barony of (9/2005 Midd)
(Fieldless) Two tridents in saltire surmounted by a unicornate natural seahorse erect argent. Atlantia, Kingdom of (9/1992 Atla)
Gules, a bend sinister checky argent and gules fimbriated Or between two mermaids proper crined and crowned Or each maintaining a shield and trident sable. Moira Fennor of Argyll (9/2002 East)
Per bend sinister sable and azure, in fess two seagoats respectant argent each maintaining a trident, the tridents in saltire Or. Domenica Zorzi (4/2003 Meri)
Per fess checky azure and argent, and azure, in chief two tridents in saltire Or, in base a dolphin naiant argent. Ian MacKynnes (9/1984 AnTi)
Per fess Or and sable, a brown bear's head erased at the shoulders affronty proper and two tridents in saltire Or. Thaddeus of Champclair (4/1987 West)
Per pale vert and azure, two tridents in pile Or. Marinus, Barony of (6/1996 Atla)
Sable, two tridents in saltire and overall an escallop Or. William Dunstan of York (1/1991 Aten)