* Bannock Basin in Levantine Sea, eastern Mediterranean Sea;
* Black Sea Basin, off eastern Europe, below 50 metres (150 feet);
* Caspian Sea Basin, below 100 metres (300 feet);
* Cariaco Basin, off north central Venezuela;
* Gotland Deep, in the Baltic off Sweden;
* L'Atalante basin, eastern Mediterranean Sea
* Mariager Fjord, off Denmark;
* Orca Basin, northeast Gulf of Mexico;
* Saanich Inlet, off Vancouver Island, Canada;