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Nepanthia belcheri : ウィキペディア英語版 | Nepanthia belcheri
''Nepanthia belcheri'' is a species of starfish in the family Asterinidae. It is found in shallow water in Southeast Asia and northeastern Australia. It is an unusual species in that it can reproduce sexually or can split in two by fission to form two new individuals. As a result, it has varying numbers of arms, and Hubert Lyman Clark, writing in 1938, stated, "It is a literal truth that no two of the 56 specimens at hand, nearly all from Lord Howe Island, are exactly alike in number, size and form of arms".〔 ==Description== ''Nepanthia belcheri'' is a small starfish with broad arms with rounded tips. Small specimens tend to have five arms, while larger ones have six or seven, although the number of arms can range from one or two to 10. When 12 months old, the length of an arm is typically , after two years it is , in the third year it reaches and in the fourth .〔 ''N. belcheri'' is a muddy brown colour.〔
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「Nepanthia belcheri」の詳細全文を読む
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