MolluscaBase name details
original description
(of Alvania (Willettia) M. Gordon, 1939) Gordon, M., Jr. (1939). A new subgenus and species of West Coast "<i>Alvania</i>". <em>The Nautilus.</em> 53(1): 29-33, pl. 7, figs. 7, 9 (left)., available online at https://www.biodiversitylibrary.org/page/8516313
page(s): 31 [details]
basis of record
Haas, F. (1943). Malacological notes - III. <em>Zoological Series of Field Museum of Natural History.</em> 29(1): 1-23., available online at https://www.biodiversitylibrary.org/page/2780313
page(s): 2-4, Figs 1a-c [details]