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Bythinella dunkeri : ウィキペディア英語版 | Bythinella bicarinata
''Bythinella bicarinata'' is a species of very small freshwater snail, an aquatic gastropod mollusk in the family Amnicolidae. == Shell description == The shell of this species measures about 2.2-2.6 mm long and has a pupoidal shape (shaped like a fly's puparium).〔Bichain J.-M.. Gaubert P., Samadi S. & Boisselier-Dubayle M.-C. (2007). "A gleam in the dark: Phylogenetic species delimitation in the confusing spring-snail genus ''Bythinella'' Moquin-Tandon, 1856 (Gastropoda: Rissooidea: Amnicolidae)". ''Molecular Phylogenetics and Evolution'' 45(3): 927–941. , (PDF ).〕 In the population first described, there are two ribs running along the length of the shell; hence the scientific name ''bicarinata'' ("two-keeled").
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「Bythinella bicarinata」の詳細全文を読む
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