CC0 · GBIF · full resolution
Isognomon californicum
Black purse shell
Animalia › Mollusca › Bivalvia › Ostreida › Isognomonidae
- Collected by
- Myrtle Thaanum; D. ThaanumDitlev Due Thaanum →Myrtle Thaanum For Ditlev Due Thaanum →
- Collector number
- 2018,e
- Date
- 1921
- Locality
- Kohala; South Kohala; near Kawaihae
- Island
- Hawaiʻi Island
- Region
- Hawaii County, Hawaii, United States
- Coordinates
- 20.0371, -155.8296 ± 544 m
- Record type
- Preservedspecimen
Where it was collected
Still here: Isognomon californicus observed near this locality
This specimen was collected in 1921. Since 2000, iNaturalist observers have recorded 14 research-grade sightings in the wild within 25 km, most recently on 2026-06-30.
2026-06-30
Hawaii County, US-HI, US
(c) aaron_dp, some rights reserved (CC BY-NC)
2026-04-20
Waikoloa Beach Resort
(c) beastieman, some rights reserved (CC BY-NC)
2026-02-19
Puako, HI 96743, USA
(c) Anders Hastings, some rights reserved (CC BY)
2026-01-15
Anaehoomalu Bay, Waikoloa, HI, US
(c) aloe44, some rights reserved (CC BY-NC)
2025-07-26
Anaehoomalu Bay, Waikoloa, HI, US
(c) kaliz, some rights reserved (CC BY-NC)
2025-06-30
Kolea Kai Cir, Waikoloa, HI, US
(c) josieposy, some rights reserved (CC BY-NC)
Observations and photos from iNaturalist, shown only when openly licensed.
Cite this specimen
Isognomon californicum. BPBM 260778. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 37283949. Accessed via explore.bishopmuseum.org/specimens/mo/260778.
Record sources
- GBIF occurrence 37283949 ↗
- Data license: CC0
- Last harvested October 27, 2026