"
Mermail" (水精鱗(マーメイル)
Māmeiru) is an
archetype of
WATER Aqua,
Fish and
Sea Serpent monsters, used by
Brooke Walker in the past, introduced in the
Abyss Rising. These monsters are based on
mermaids outfitted with armor, hence "mail". They are intimately related to the "
Abyss-" archetype, as they all belong to the archetype.
Level 3 "Mermail" monsters are all
female Aqua monsters, Level 4 "Mermail" monsters are all male Fish monsters and Level 7 "Mermail" monsters are all Sea Serpent monsters, except for the Aqua "
Mermail Abyssbalaen" and "
Mermail Abyssteus".
Each "Mermail" monster is based on a real life aquatic animal. The original three female "Mermail" monsters released in
Abyss Rising, "
Mermail Abysslinde", "
Mermail Abyssgunde", and "
Mermail Abysshilde" have names coming from the Rhinemaidens (Woglinde, Wellgunde, Flosshilde) in the German opera
Der Ring des Nibelungen (The Ring of the Nibelung) by
Richard Wagner. The Level 7 "Mermail" monsters (excluding "
Mermail Abyssbalaen)", "
Mermail Abyssmegalo", "
Mermail Abyssleed" and "
Mermail Abyssteus" take inspiration from
extinct aquatic species. The Xyz Monsters, "
Mermail Abyssgaios" and "
Mermail Abysstrite" take inspiration from
Ancient Greek deities.