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・ Planographic printing
・ Planogyra
・ Planogyra asteriscus
・ Planoise
・ Planoles
・ Planolestes
・ Planolites
・ Planolocha
・ Planomicrobium
・ Planomicrobium koreense
・ Planophila
・ Planoprotostelium aurantium
・ Planopus
・ Planorbarius
・ Planorbarius corneus
Planorbella
・ Planorbella duryi
・ Planorbella trivolvis
・ Planorbidae
・ Planorbidella
・ Planorbidella depressa
・ Planorbidella planispira
・ Planorbis
・ Planorbis carinatus
・ Planorbis corinna
・ Planorbis kahuica
・ Planorbis planorbis
・ Planorboidea
・ Planorbulinacea
・ Planos


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Planorbella : ウィキペディア英語版
Planorbella

''Planorbella'' is a genus of freshwater air-breathing snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails, or planorbids, which all have sinistral, or left-coiling, shells.
==Ecology==
Species in this genus are sometimes hosts for parasites, constituting a link in the pathway of infection for higher animals. For example, some species of ''Planorbella'' host rediae and cercariae stages of the parasite ''Ribeiroia'', prior to ultimate infection of the Rough-skinned Newt.〔C. Michael Hogan (2008) ''Rough-skinned Newt ("Taricha granulosa")'', GlobalTwitcher, ed. N. Stromberg ()〕
''Planorbella'' are often algae grazers, and in some locations such as oligotrophic sloughs, they may be a dominant element of total ecosystem biomass and hence system integrity.〔Curtis J. Richardson (2008) ''The Everglades Experiments: Lessons for Ecosystem Restoration''〕

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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