Psilaster andromeda worm is approaching maturation, it moves into the pyloric caeca and at the same time loses all its cilia. 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
Bounty Trough the South Island's coast. It covers an area of approximately . Much of The Bounty Trough lies at depths of , and it marks an indentation in the "coastline" of the largely submerged continent of Zealandia. A curious feature of the Bounty Trough is that it marks the continuation of several main river features in the South Island – the "Otago Fan Complex". This is a distinct series of channels existing in the base of the trough which is an extension of the Clutha and Waitaki River systems. Both these rivers, especially the Clutha, are noted for their fast flow.