Hydra Jellyfish Small 196×320 Medium 391×640 Large 626×1024 Download Tiff Original 1467×2400 | (844.0 KB) Description Fresh water Hydra, a jellyfish, is a many celled animal. The organs of defence, nettle cells or lasso cells , in the event of disturbance, the sac will discharge coiled thread an barbs into the body of the intruder. Keywords fresh water hydra, hydra, jellyfish Galleries Jellyfish Source: Winchell, Alexander Sketches of Creation (New York, NY: Harper & Brothers, 1870)
