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Spatangidae
The Spatangidae are a family of heart urchins. There are four recognised genera within the family; ''Maretia'', ''Paramaretia'', ''Pseudomaretia'' and ''Spatangus''.〔Hansson, H. (2009). (Spatangidae ). Accessed through the World Register of Marine Species on 2 August 2010〕 Additionally, ''Spatagus'' and ''Prospatangus'' were previously recognised genera within the Spatangidae, but are now accepted as part of the genus ''Spatangus''.〔 The Spatangidae are marine heart urchins that feed on subsurface deposits and graze.〔 ==References==
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「Spatangidae」の詳細全文を読む
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