Isognomon californicum

Black purse shell

Animalia › Mollusca › Bivalvia › Ostreida › Isognomonidae

Collected by: Moye, R., A. Williams, and A. McBride; Moye, Robert JA. McBride →Robert J. Moye →A.M. Williams →
Locality: Koolaupoko; Kailua Ahupuaa; Kawainui Basin
Island: Oʻahu
Region: Honolulu County, Hawaii, United States
Record type: Preservedspecimen

35 Bishop specimens of Isognomon californicum · collected 1900–2003Species page ›

Isognomon californicus observed alive in Hawaiʻi

Since 2000, iNaturalist observers have recorded 260 research-grade sightings in the wild, most recently on 2026-10-12.

2026-10-12

Lāʻie, HI, US

(c) anemoneme, some rights reserved (CC BY-NC)

2026-09-24

Kaiminani, HI 96740, USA

(c) rnpreptiles, some rights reserved (CC BY-NC)

2026-09-12

Māʻili Beach Park, 87-021 Farrington Hwy, Waianae, HI 96792, USA

(c) pickin, some rights reserved (CC BY-NC)

2026-09-03

Kailua Kona, HI, US

(c) nikkibirding, some rights reserved (CC BY-NC)

2026-08-30

Mauna Loa, Hōnaunau-Nāpōʻopoʻo, HI, US

(c) alex_tran, some rights reserved (CC BY-NC)

2026-08-03

S Kihei Rd, Kihei, HI, US

(c) leelovesnature1111, some rights reserved (CC BY-NC)

Observations and photos from iNaturalist, shown only when openly licensed.

Cite this specimen

Isognomon californicum. BPBM 265323. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 37283640. Accessed via explore.bishopmuseum.org/specimens/mo/265323.

Record sources

GBIF occurrence 37283640 ↗
Data license: CC0
Last harvested October 27, 2026