Pilsbry, H. A. (1904). New Japanese marine Mollusca: Pelecypoda. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 56: 550-561, pls 39-41., available online athttps://www.biodiversitylibrary.org/page/26316962[details]
MolluscaBase eds. (2024). MolluscaBase. Cardium hungerfordi stigmaticum Pilsbry, 1904. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=466823 on 2024-05-01
original descriptionPilsbry, H. A. (1904). New Japanese marine Mollusca: Pelecypoda. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 56: 550-561, pls 39-41., available online athttps://www.biodiversitylibrary.org/page/26316962[details]