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''Mictyris'' is a genus of brightly coloured crabs, placed in its own taxonomical family, the Mictyridae. It inhabits the central Indo-West Pacific region. These crabs congregate on mud flats or beaches in groups of a few thousand, and filter sand or mud for microscopic organisms. They congregate during low tide, and bury themselves in the sand during high tide or whenever they are threatened. This is done in wet sand, and they dig in a corkscrew pattern, leaving many small round pellets of sand behind them. The genus contains six species:〔 *''Mictyris brevidactylus'' Stimpson, 1858 *''Mictyris guinotae'' Davie ''et al.'', 2010 *''Mictyris livingstonei'' McNeill, 1926 *''Mictyris longicarpus'' Latreille, 1806 *''Mictyris occidentalis'' Unno, 2008 *''Mictyris platycheles'' H. Milne-Edwards, 1852 *''Mictyris thailandensis'' Davie, Wisespongpand & Shih, 2013 The predictable behaviour of these crabs has led them to be used in experiments in a form of billiard ball computer. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Mictyris」の詳細全文を読む スポンサード リンク
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