Spirochaetaceae
  螺旋體科
  Spi·ro·chae·ta·ce·ae /ˌspaɪrəkɪˈtesɪˌɪ/ 名詞 複數
  Spirochaetaceae
       n : large coarsely spiral bacteria; free-living in fresh or salt
           water or commensal in bodies of oysters [syn: family
           Spirochaetaceae]