Massy A. L. (1909). The Pteropoda and Heteropoda of the coast of Ireland. <i>Department of Agriculture and Technical Instruction for Ireland 1-52 pl. 1</i>: [details]
MolluscaBase eds. (2021). MolluscaBase. Clione gracilis Massy, 1909. Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2021) European Register of Marine Species at: http://www.vliz.be/vmdcdata/narms/narms.php?p=taxdetails&id=748215 on 2024-04-25
Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2024). European Register of Marine Species. Clione gracilis Massy, 1909. Accessed at: https://www.vliz.be/vmdcdata/narms/narms.php?p=taxdetails&id=748215 on 2024-04-25
original descriptionMassy A. L. (1909). The Pteropoda and Heteropoda of the coast of Ireland. <i>Department of Agriculture and Technical Instruction for Ireland 1-52 pl. 1</i>: [details]