Karin Mahlfeld, David Roscoe, Frank Climo
iNaturalist
"Shell very small, tall-spired, smooth, shiny light brown. The parietal lamella shows up as a thin narrow ridge in the ventral view. It also shows that the umbilicus (""navel"" of the shell) is closed and how the columella (white) is folded back. This species occurs in the Wellington Region up to central North Island but not in eastern Wairarapa. Further north it can be found mainly in the coastal areas of Hawkes Bay, East Coast, Bay of Plenty, Hauraki Gulf, Northland and as far south as northern Taranaki. This species is also known from coastal areas of the northern half the of the South Island. Photo: D.J. Roscoe"