Marine snail shells on the shore in the sand.jpg
Shannon Keith, U.S. Fish and Wildlife Service
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Marine snail shells on the shore in the sand, 
:Image title: Marine snail shells on the shore in the sand
:Image from Public domain images website,
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Marine snail shells on the shore in the sand, Unidentified Gastropoda, Public-domain-image.com
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砂浜の海のカタツムリ貝殻 :図題:砂浜の海のカタツムリ貝殻 :図録パブリックドメイン画像ウェブサイトより
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砂浜の海生カタツムリの殻、身元特定胃脚類、パブリックドメイン画像.com
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gastropod univalve gastropoda snails and slugs schnecken