鳞足螺

鳞足螺（学名：Chrysomallon squamiferum），又名鱗角腹足蝸牛，是一种生活在深海热泉的海螺，屬於Peltospiridae（英语：Peltospiridae）科的海洋腹足纲软体动物物种，也是鳞足螺属（Chrysomallon）的单型种。本物種不單與其他深海腹足綱物種相異甚遠，就連同屬Neomphaloidea總科的物種亦與之相異甚遠。2019年，因深海資源開發將對熱泉區帶來的環境影響，它以瀕危（endangered，指很可能會绝灭的物種）的級別被列入國際自然保護聯盟（IUCN）的瀕危物種紅色名錄。 其螺殼雖然亦是與其他腹足綱物種一樣由三層組成，但部分的化學構成有所不同：最外一層由硫化鐵組成，中間一層相當於其他物種的有機外殼膜，而最裡層則由霰石構成。其腹足亦很特別，裹有礦物化了的鐵構成的鱗甲。這亦是本物種的名稱由來。 其異常大的食道腺住有共生性Γ-變形菌，；而其心臟按其身體體型與其他動物來比較亦是異常的大，佔了整個身體的4%體積。 其生活在印度洋海域2400米到2800米深的深海热泉。该物种被首次发现于2001年，位于印度洋中洋脊2420米深深海热泉的黑色海底烟柱旁。该物种随后也在Solitaire与Longqi区域被发现。 This article incorporates Creative Commons (CC-BY-4.0) text from references and CC-BY-2.5 text from the reference The IUCN Red List of Threatened Species. Version 2019-1. 2019 [2019-07-28]. （原始内容存档于2018-07-23）.  Chen, Chong; Linse, Katrin; Copley, Jonathan T.; Rogers, Alex D. The 'scaly-foot gastropod': a new genus and species of hydrothermal vent-endemic gastropod (Neomphalina: Peltospiridae) from the Indian Ocean. 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