Main Page | See live article | Alphabetical index Meiobenthos means the small organisms of the marine and freshwater benthos. The size of organisms is about 1 mm to 0.063 mm. A lot of meiobenthic organisms live in the interstitial system of the sand floor. Others live in the mud. Major taxonomic groups of the Meiobenthos are nematodes tardigrades oligochaets polychaets rotifers This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.