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(), n.; pl. L. Pleurotom (), E. Pleurotomas (). [NL., fr. Gr. the side + tomh° a cut.] (Zol.) Any marine gastropod belonging to Pleurotoma, and ether allied genera of the family Pleurotmid. The species are very numerous, especially in tropical seas. The outer lip has usually a posterior notch or slit. スポンサード リンク
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