A number of holothurians were observed during the fifth dive of the Seascape Alaska 3 expedition, including Amperima sp. sea pigs like the one imaged here, seen at 2,803 meters (1.74 miles) depth.
Sea Pig
Image courtesy of NOAA Ocean Exploration, Seascape Alaska. Download larger version (jpg, 1.2 MB).

A number of holothurians were observed during the fifth dive of the Seascape Alaska 3 expedition, including Amperima sp. sea pigs like the one imaged here, seen at 2,803 meters (1.74 miles) depth.