Psilaster andromeda Psilaster andromeda Psilaster andromeda is a species of starfish in the family Astropectinidae. It is native to the northeastern Atlantic Ocean where it occurs at abyssal depths. "Psilaster andromeda" is a deep water species of starfish native to the northeastern Atlantic Ocean. Its range extends from Murmansk and the coasts of Norway to the Faeroes, the Kattegat, the United Kingdom and the Bay of Biscay. It is present in the Rockall Trough. It is found in Norwegian fiords on muddy bottoms at depths of . It is also found in the Porcupine Seabight and on the Porcupine Abyssal Plain in
Rockall Basin 55 million years ago, a continental fragment formed between Greenland and Europe when the ancient continent of Laurasia was split apart by plate tectonics. The Rockall Islet is the highest point of the plateau, rising 21 m above sealevel. It is made of a type of peralkaline granite. The petroleum and natural gas resources in the area have been the source of political tensions between the governments of the United Kingdom, Ireland, Iceland and the Faroe Islands (a possession of Denmark). The area supports cold water coral colonies and carbonate mound fields such as the Logachev Mounds; the trough supports