Antarctoneptunea aurora  Antarctoneptunea aurora is a species of sea snail, a marine gastropod mollusk in the family Buccinidae, the true whelks. "Antarctoneptunea aurora" is a small to medium-sized buccinid whelk species. "Antarctoneptunea aurora" occurs in the Southern Ocean surrounding Antarctica, particularly from the Ross Sea. Specimens have been collected from depths between 188 and 603 metres.