Sedna (Inuktitut: ᓴᓐᓇ Sanna, previously Sedna or Sidne) is the goddess of the sea and marine animals in Inuit mythology, also known as the Mother of the Sea or Mistress of the Sea. Sedna is also known as Arnakuagsak or Arnaqquassaaq (Greenland) and Sassuma Arnaa ("Mother of the Deep", West Greenland) and Nerrivik ("Table", northern Greenland) or Nuliajuk (District of Keewatin, Northwest Territories, Canada). She is sometimes known by other names by different Inuit groups such as Arnapkapfaaluk ("Big Bad Woman") of the Copper Inuit from the Coronation Gulf area and Takánakapsâluk or Takannaaluk (Igloolik). In Killiniq, Labrador, she was referred to as "Old-woman-who-lived-in-the-sea". The story of Sedna, which is a creation myth, describes how she came to rule over Adlivun, the Inuit underworld.