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来自维基百科,自由的百科全书
碟形貝屬(學名:Discinisca),又名滴貝屬,是平圓貝科下的一個屬,生存於泥盆紀早期至今的非洲、歐洲、北美洲及紐西蘭。[1]牠們利用短小的肉莖附著在海中的各類基底上,常被發現附生於其他貝殼上。[2]
該屬具有平緩的圓錐形腹殼和扁平至微突狀的背殼。殼形從圓形到抹刀形都有,前緣十分突出,殼表有纖細的同心生長線,並有一很薄的、切口狀的肉莖孔,幼貝的肉莖孔是敞開的,成體的則會闔上。[2]
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