Earthworm - L. terrestris permanent vertical burrow.jpg
North Appalachian Experimental Watershed, USDA-Agricultural Research Service, Coshocton, Ohio.
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Earthworm L. terrestris permanent vertical burrow, Lumbricus terrestris, Unknown date
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Earthworm L. terrestris permanent vertical burrow, Earthworm - L. terrestris - permanent vertical burrow photo, Permanent vertical burrow
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ミミズ 地上の永久垂直巣穴、オオムラサキ、不明な年代
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ミミズ L. terrestris 永久垂直巣穴、ミミズ-L. terrestris-永久垂直巣穴写真、永久垂直巣穴
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earthworm vertical section