Alacia hettacra

are preyed upon by

• Global Biotic Interactions: Callianira antarctica Chun 1897
• Global Biotic Interactions: Gymnoscopelus opisthopterus Fraser-Brunner 1949
• Global Biotic Interactions: Artedidraco orianae Regan 1914
• Global Biotic Interactions: Gymnodraco acuticeps Boulenger 1902 (Ploughfish)
• Global Biotic Interactions: Vibilia antarctica Stebbing 1888

prey on

• Global Biotic Interactions: Clione limacina (Phipps 1774) (Sea Angel)
• Global Biotic Interactions: Clio pyramidata Linnaeus 1767
• Global Biotic Interactions: Boroecia antipoda
• Global Biotic Interactions: Pelagobia longicirrata Greeff 1879
• Global Biotic Interactions: Metridia gerlachei Giesbrecht 1902