Sowerby, G. B. II. (1841). [Characters of new species of the genus Cardium exhibited by Mr. Cuming]. <em>Proceedings of the Zoological Society of London.</em> 1840: 105-111 (May 1841)., available online athttps://www.biodiversitylibrary.org/page/30571542[details]
MolluscaBase eds. (2021). MolluscaBase. Cardium attenuatum G. B. Sowerby II, 1841. Accessed at: https://molluscabase.org/aphia.php?p=taxdetails&id=466723 on 2024-04-26
original descriptionSowerby, G. B. II. (1841). [Characters of new species of the genus Cardium exhibited by Mr. Cuming]. <em>Proceedings of the Zoological Society of London.</em> 1840: 105-111 (May 1841)., available online athttps://www.biodiversitylibrary.org/page/30571542[details]