(ofParapholyx durhami Glen, 1960 †)Glen, W. (1960). Pliocene Fresh-Water Gastropods from San Mateo County, California <em>Journal of Paleontology</em>. 34(6): 1207-1209 page(s): 1209, text-figs 1A-1D [details]
MolluscaBase eds. (2025). MolluscaBase. Vorticifex durhami (Glen, 1960) †. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1260829 on 2025-05-21
Marine Species Traits editorial board (2025). Marine Species Traits. Vorticifex durhami (Glen, 1960) †. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1260829 on 2025-05-21
original description(ofParapholyx durhami Glen, 1960 †)Glen, W. (1960). Pliocene Fresh-Water Gastropods from San Mateo County, California <em>Journal of Paleontology</em>. 34(6): 1207-1209 page(s): 1209, text-figs 1A-1D [details]