Gray, J. E. (1824). Monograph of the genus <i>Helicina</i>. <em>The Zoological Journal.</em> 1 (1): 62–71, pl. 6. [Explanation of the plate p. 251]., available online athttps://www.biodiversitylibrary.org/page/27570789 page(s): 67, pl. 6, fig. 6 [details]
MolluscaBase eds. (2024). MolluscaBase. Helicina costata J. E. Gray, 1824. Accessed at: https://molluscabase.org/aphia.php?p=taxdetails&id=1389602 on 2024-03-28
original descriptionGray, J. E. (1824). Monograph of the genus <i>Helicina</i>. <em>The Zoological Journal.</em> 1 (1): 62–71, pl. 6. [Explanation of the plate p. 251]., available online athttps://www.biodiversitylibrary.org/page/27570789 page(s): 67, pl. 6, fig. 6 [details]
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