Isognomon

Purse Oysters

Animalia › Mollusca › Isognomonidae

Isognomon observed alive

Since 2000, iNaturalist observers have recorded 997 research-grade sightings in the wild, most recently on 2026-10-25.

2026-10-25

Potamos, Malia, Crete, GR

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

2026-10-23

Kalakaua Ave, Honolulu, HI, US

(c) jordan loftin, some rights reserved (CC BY-NC)

2026-10-22

Crete, Malia, Crete, GR

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

2026-10-18

Safe Harbor, Key West, FL, US

(c) Concavenator07, some rights reserved (CC BY-NC)

2026-10-15

Ponte Vedra Beach, FL 32082, USA

(c) David Wandel, some rights reserved (CC BY-NC)

2026-10-12

Lāʻie, HI, US

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

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

Isognomon. BPBM 260861. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 37283892. Accessed via explore.bishopmuseum.org/specimens/mo/260861.