Hyperoglyphe antarctica (Antarctic Butterfish) is a species of ray-finned fishes in the family medusafishes. Individuals are known to live for 15 years.
Definition: An aquatic biome that comprises systems of open-ocean and unprotected coastal habitats, characterized by exposure to wave action, tidal fluctuation, and ocean currents as well as systems that largely resemble these. Water in the marine biome is generally within the salinity range of seawater: 30 to 38 ppt.