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Noetiidae is a family of saltwater clams, marine bivalve mollusks in the order Arcoida. They are related to the ark clams and used to be classified as among them. They are differentiated from the ark clams by the presence of striations on the hinge ligament and on the placement of this ligament. Like the ark clams, however, their shells range from ovate to elongate, are inflated, and are brown and white with clear radial ribs. They usually grow to around 6 cm in length, with a maximum of 10 cm. ==Genera and species== Genera and species within the family Noetidae include: * ''Arcopsis'' Koenen, 1885 * * ''Arcopsis adamsi'' (Dall, 1886) * * ''Arcopsis fossularca'' * * ''Arcopsis gabinarca'' * * ''Arcopsis mulinarca'' * * ''Arcopsis ribriarca'' * * ''Arcopsis scapularca'' * * ''Arcopsis solida'' (Sowerby, 1833) * * ''Arcopsis spinearca'' * * ''Arcopsis verilarca'' * ''Noetia'' Gray, 1857 * * ''Noetia alssoni'' * * ''Noetia bisulcata'' * * ''Noetia delgada'' (Lowe, 1935) * * ''Noetia lindae * * ''Noetia ponderosa'' (Say, 1822) * * ''Noetia reversa'' (Sowerby, 1833) * ''Noetiella'' * * ''Noetiella congoensis'' * ''Rectangularca'' * ''Scapularca'' * ''Scelidionarca'' * ''Sheldonella'' * * ''Sheldonella barbatiella'' * * ''Sheldonella didimacar'' * * ''Sheldonella minutalis'' * * ''Sheldonella paranoetia'' * ''Stenocista'' * * ''Stenocista gambiensis'' * ''Striarca'' * * ''Striarca afra'' * * ''Striarca breviarca'' * * ''Striarca estellacar'' * * ''Striarca galactella * * ''Striarca lactea'' * * ''Striarca pectunculiformis'' * ''Trigonodesma'' * ''Trinacria'' * ''Verilarca'' * * ''Verilarca sinensis'' 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「Noetiidae」の詳細全文を読む スポンサード リンク
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