
Polinices mammilla
Pear-shaped Sand Snail
marine
(Linnaeus, 1758)Accepted name in the World Register of Marine Species.WoRMS 216923 ↗
Photo: no rights reserved, uploaded by Manis Lin (iNaturalist)
7
Bishop specimens
0
Type specimens
1951
First collected
1972
Last collected
2026
Last seen alive in Hawaiʻi
Where Bishop collected it
2 mapped specimens. Localities of endangered species are shown approximately.
Two centuries of collecting
1950s1970s
The oldest Bishop specimen was collected in 1951 by Ralph E. Miller; Ralph E. Miller (Kapingamarangi). The Museum last collected it in 1972; iNaturalist observers have seen it in the wild as recently as June 5, 2026.
From the collection
Alive today
3 research-grade iNaturalist sightings in the wild in Hawaiʻi since 2000. Most recent first.







