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. (2024). MolluscaBase. Clione gracilis Massy, 1909. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=748215 on 2024-11-25
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]