original description
Ladd, H.S. (1958). Fossil land shells from western Pacific atolls. <em>Journal of Paleontology.</em> 32(1): 183-198.
page(s): 189-190, pl. 30, figs 7,8 [details] Available for editors [request]
Holotype USNM 562090, geounit Funafuti [details]
From editor or global species database
Type locality "In cuttings from drill hole 2B on Bikini Atoll at a depth of 1807 to 1818 feet; age lower Miocene (Miocene e)" [details]