National Geographic : 1937 Feb
STRANGE CREATURES OF SUNNY SEAS © National Geographic Society Painted by Else Bostelmann under direction Roy W. Miner SEA NETTLES AND SOME COUSINS THAT LURK IN DEEP BLUE WATERS Graceful and rose-flecked, the PELAGIA (upper right) propels itself by expanding and contracting the umbrella. Slender tentacles, armed with sting cells, hang from the border to entangle the prey. Vast swarms of the MUSHROOM JELLYFISH (lower left) sometimes carpet the ocean in patches 100 miles long. The animal has no mouth, and uses instead curious mouth lobes equipped with suckers. The CUBOID MEDUSA (upper left) swims in the open sea. Two species of comb jellies are shown : the ribbon like VENUS'S-GIRDLE (lower right), which rolls and unrolls as it swims, and the delicate ROSEBUD (left center).