original description
Gould, A. A. (1852). Mollusca and shells. <em>In: United States Exploring Expedition during the years 1838, 1839, 1840, 1841, 1842 under the command of Charles Wilkes. Boston.</em> 12: 1-510; atlas 1856: 1-16., available online at https://www.biodiversitylibrary.org/page/10991152
page(s): 31, pl. 5, fig. 69a, b. [details]
source of synonymy
Baker, H. B. (1941). Zonitid snails from Pacific Islands. Part 3 and 4. <em>Bernice P. Bishop Museum Bulletin.</em> 166: 203–370., available online at http://hbs.bishopmuseum.org/pubs-online/pdf/bull166.pdf [details]
From editor or global species database
Nomenclature Non. nov. for Helix calva Gould, 1846, non Lowe, 1831 [details]