錐海膽

錐海膽（學名：），又名錐尾海膽，是一屬已滅絕的海膽，其化石主要分布在亞洲、歐洲及北美。牠們的體殼為圓形，當從頂部看時為近五邊形，從側面看時則為錐形。基座扁平或凹入，口位於基座的中心，而肛門則位於基座的邊緣。體殼的表面有許多很小的刺瘤，刺瘤上長有氈狀小棘刺。錐海膽生活在海底，於鬆軟的泥中犁行以覓食。

 物種 
 Conulus campaniformis Melikov & Endel'man,1963
 Conulus castaneus  (Brongniart, 1822)
 Conulus chiapasensis Lambert, 1936
 Conulus chiesai Airaghi, 1939
 Conulus cubensis Sánchez Roig, 1949
 Conulus grauensis Currie, 1943
 Conulus kubatliensis Melikov, 1988
 Conulus matesovi Moskvin & Poslavskaya, 1959
 Conulus mixtus  (Defrance, 1820)
 Conulus mullerriedi Lambert, 1935
 Conulus parravanoi Checchia-Rispoli, 1932
 Conulus praenuntius Carter, 1928
 Conulus rothomagensis (Sismonda, 1844) 
 Conulus sanfilippoi Checchia-Rispoli, 1930
 Conulus stephensoni Cooke, 1953
 Conulus subrotundus Mantell, 1822
 Conulus tradis Lees, 1928
 Conulus zinai Airaghi, 1939

 参考文獻 

 外部連結 
 Conulus  in the Paleobiology Database

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