Calliostoma supragranosum

Granulose Topsnail

Animalia › Mollusca › Gastropoda › Trochida › Calliostomatidae

Collected by: Thaanum
Collector number: 6279
Locality: California; San Pedro
Region: California
Record type: Preservedspecimen

Calliostoma supragranosum observed alive

Since 2000, iNaturalist observers have recorded 277 research-grade sightings in the wild, most recently on 2026-09-14.

2026-09-14

Ragged Point, CA 93452, USA

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

2026-08-10

California, US

(c) sarahal1010, some rights reserved (CC BY-NC)

2026-08-10

California, US

(c) sarahal1010, some rights reserved (CC BY-NC)

2026-08-10

California, US

(c) sarahal1010, some rights reserved (CC BY-NC)

2026-08-10

Laguna Beach, CA, US

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

2026-08-10

California, US

(c) sarahal1010, some rights reserved (CC BY-NC)

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

Cite this specimen

Calliostoma supragranosum. BPBM 226835. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 35689285. Accessed via explore.bishopmuseum.org/specimens/mo/226835.

Record sources

GBIF occurrence 35689285 ↗
Data license: CC0
Last harvested October 27, 2026