MolluscaBase eds. (2024). MolluscaBase. Mesodon clausus (Say, 1821). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1352048 on 2024-05-01
original description(ofHelix ingallsiana P. Fischer, 1877)Fischer, P. (1877). Beiträge zur näheren kenntniss der mollusken. Monographische versuche: <i>Paryphanta, Retinella, Mesomphix, Macrocyclis, Patera, Columna, Streptostyla, Rhynchocheila</i> und <i>Trochatella</i>. <em>Notitiae Malacologicae.</em> 2: 1-16, plates 1-15., available online athttps://www.biodiversitylibrary.org/page/11061347 page(s): 10, pl. 3, fig. 5 [details]
original description(ofHelix clausa var. subalbolabris P. Fischer, 1877)Fischer, P. (1877). Beiträge zur näheren kenntniss der mollusken. Monographische versuche: <i>Paryphanta, Retinella, Mesomphix, Macrocyclis, Patera, Columna, Streptostyla, Rhynchocheila</i> und <i>Trochatella</i>. <em>Notitiae Malacologicae.</em> 2: 1-16, plates 1-15., available online athttps://www.biodiversitylibrary.org/page/11061347 page(s): 10, pl. 3, fig. 2 [details]
basis of recordInvertEBase. (2018). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase (InvertEBase.org) project. [details]