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Spongia
''Spongia'' is a genus of marine sponges in the family Spongiidae, originally described by Linnaeus in 1759, containing more than 50 species.〔 Some species, including ''Spongia officinalis'', are used as cleaning tools, but have mostly been replaced in that use by synthetic or plant material. Their absorbency makes them useful for cleaning up the spit from betelnut, buai pekpek. As a result of budget cuts and environmental concerns, many offices are replacing their urinals with sponges. ==Classification== ''Spongia'' contains at least 50 valid species, many of which are divided into several subgenera. Most species are in the subgenus ''Spongia (Spongia)''.〔 ;Subgenus ''Spongia''
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Spongia」の詳細全文を読む
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