Bartsch, P. (1911). The west American mollusks of the genus <i>Amphithalamus</I>. <em>Proceedings of the United States National Museum.</em> 41(1854): 263-265., available online athttps://doi.org/10.5479/si.00963801.41-1854.263[details]
original descriptionBartsch, P. (1911). The west American mollusks of the genus <i>Amphithalamus</I>. <em>Proceedings of the United States National Museum.</em> 41(1854): 263-265., available online athttps://doi.org/10.5479/si.00963801.41-1854.263[details]