National Geographic : 1960 Jan
Sea spider, 2,600 feet below the surface, struggles through a "marine snow" of plankton. On the bottom, such pycnogonids stalk on legs as long as 24 inches. Jellyfish's fragile parachute floats away from the camera at 3,900 feet. Umbrella of Aequorea coerulescens spans 8 inches. Feather star (Heliometra glacialis) waves its arms from the Pacific floor, 3,900 feet 142 deep. Tentacles crown the jellyfish above it.