Pfeiffer, L. (1842). <i>Symbolae ad historiam Heliceorum</i>, Part II [<i>Sectio altera</i>.] Kassel (Th. Fischer). 147 pp. [< 21 December]. , available online athttps://www.biodiversitylibrary.org/page/12254177 page(s): 39 [details]
MolluscaBase eds. (2021). MolluscaBase. Helix sirena L. Pfeiffer, 1842. Accessed at: http://www.molluscabase.org/aphia.php?p=taxdetails&id=1320983 on 2024-04-19
original descriptionPfeiffer, L. (1842). <i>Symbolae ad historiam Heliceorum</i>, Part II [<i>Sectio altera</i>.] Kassel (Th. Fischer). 147 pp. [< 21 December]. , available online athttps://www.biodiversitylibrary.org/page/12254177 page(s): 39 [details]
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