ben·thos /ˈbɛnˌθɑs/
  海底生物,海底的動植物群
  Ben·thos n.  The bottom of the sea, esp. of the deep oceans; hence Bot. & Zool., the fauna and flora of the sea bottom; -- opposed to plankton.
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  benthos
       n 1: a region including the bottom of the sea and the littoral
            zones [syn: benthic division, benthonic zone]
       2: organisms (plants and animals) that live at or near the
          bottom of a sea