Attina has an orange tail with a matching seashell bra and brown hair, and wears a crown-like tiara similar to her father's. She is described by her sisters as being bossy but has often displayed being the most responsible. According to Ariel’s Beginning, Attina is the eldest (and is likely the next-in-line to the Atlantican throne). This was determined by her unique crown, robust voice, as well as speculation that her name is a Jamaican pronunciation of her mother’s name, Athena. Although her name was most likey taken from Alan Menken's rock opera "Atina, Evil Queen of the Galaxy."

Aquata has a blue tail with a matching seashell bra and brown hair that is worn in a ponytail tied up in a band of white pearls. In extension media released from 1989 onwards, she is the eldest daughter of King Triton. However, in Ariel's Beginning, she is not the eldest sister, but at the middle age, and her main characteristic seems to be a slight aggressiveness towards Arista, who borrows her stuff without asking, and a lack of grace. Her name is a variant of the Latin base Aqua meaning 'WATER' and is also a shade of blue.

Andrina has a lavender tail with a matching seashell bra and blonde hair worn in a high ponytail bun with a pink decoration. In extension media released from 1989 onwards, she is the second daughter of King Triton. In the prequel film, she is one year older than Ariel, and is most notable for her dry wit, slightly sarcastic one-liners. Her name comes from Italian origins meaning 'HAPPINESS'. Some argue it means 'SWORD'.

Arista has a red tail with a matching seashell bra and long, blonde hair tied in a sloppy ponytail. She is given a distinct personality in the television series, where she is shown as having a conflict of ideals with the adventurous Ariel. Arista confesses that she always secretly envied Ariel's adventurous lifestyle. In the prequel film, she doesn’t have such a difficult relationship with Ariel but with Aquata, whose belongings she keeps borrowing. Her name comes from the Greek word meaning 'BEST' as in ARISTocracy.

Adella has a goldenrod tail with a chartreuse green seashell bra and blackish brown hair tied in a ponytail in bands of yellow pearls. In the TV series and second film, she is shown to be slightly heavier than her sisters, however in both the original and prequel films, she has the exact same figure as her sisters. In the prequel film, Adella is "boy-crazy", and is by two years the elder to Ariel. Short for Adelaide, her name is German meaning 'NOBLE'.

Alana has a pink tail with a violet seashell bra and black hair in curls with a tiara on her head. In the prequel film, she has blue eyes. According to the DVD game, Alana is seen as "glamorous", and makes her own beauty products. The least is known about Alana but according to rumor her look was loosely based off of both of Cinderella’s stepsisters with Drizella’s hair and Anastasia’s color scheme. Her name is the femanine version of Alan Menken's first name.