Amazing Attractive Aquagirls

Lisa Morel was born in the Atlantis of Earth-One, but due to a genetic mutation was unable to live underwater indefinitely, and so was exiled to the surface world where the Morel family adopted her. As an adult, her powers awoke when Aquaman's life was in danger, although soon realized that her aquatic abilities were limited. After meeting her hero, Lisa returned to the surface.

Jane Sloan, an expert swimmer, was employed by bookkeeper Phil Johnson to play a mermaid and mentally torment banker Mark Windham. However, the Aquaman of Earth-Two discovered the deception and with Jane's help brought Johnson to justice. After this, she married Windham!

Of course, the most famous version of Aquagirl was the honorary Earth-One Teen Titan born Tula, of the royal family from Poseidonis, Atlantis. Aiding her boyfriend Garth aka Aqualad, this Aquagirl met her tragic end during the Crisis on Infinite Earths defending Earth-Four.

This was an identity which her Earth-Two counterpart, Lanya of Aurania never had time to adopt herself, despite meeting the teen wonder known as Robin, who saved her kingdom from a Nazi invasion and her brother Taro’s misguided decision-making as well. A trait that Taro’s cosmic twin, Aquababy, exhibited when he was temporarily aged to adulthood.

Another unofficial "aqua-girl" was the daughter of immortal chemist turned undersea warlord Tamerkhan the Cruel. He was the scientist employed by Mongol leader Genghis Khan of Earth-One centuries ago. When his master's dynasty finally collapsed, he along with his loyal lieutenant Attucka boarded his submarine. A Kublai Khan and his daughter May-Lin previously met the Superman of Earth-Two.

Kept alive for centuries as well as gaining the ability to live under water due to a serum of his own creation, Tamerkhan sired a daughter named Liat whom he intended to wed to a royal prince in order to obtain power once more. When they encountered the Atlantean heir Arthur "Aquababy" Curry Jr., they artificially aged him in order to have Liat seduce him into marriage. While this led to their temporarily taking control of Atlantis, Arthur's parents Aquaman and Mera defeated the Mongols who all perished as a result.