Isabella is a mermaid with a orange tail and machting tops with magic stones in them she meets she is a member of the mergang Along with Emma, Rikki, Cleo, Jackie, Gabriel, Attina, Aquata, Arista, Adella, Alana and Adrina and are transformed into polyps currently. notes: Ariel's mersisters are currently polyps and owned by ursula Bella, Rikki, Cleo, Emma and jackie where transformed into polyps to and Emma and Bella meet and became great friends.