Galapagos Species Database

The Galapagos Species Database shares the information about the species from our Natural History Collections.

Conus diadema G. B. Sowerby I, 1834

cono diadema, Diadem cone, crowned cone

Length: 46 mm; diameter: 20 mm.

Shallow water (less than 200 m depth), rocky intertidal and subtidal.

Taxonomy

Domain
Eukaryota

Kingdom
Animalia

Phylum
Mollusca

Class
Gastropoda

Order
Neogastropoda

Superfamily
Conoidea

Family
Conidae

Genus
Conus

Species
diadema

Taxon category: Accepted

Syn.: Conus prytanis Sowerby, 1882. AMNH: 87148, 110389, 110737, 163920, 164458, 164479, 164490, 164501, 164504, 164539, 164543, 164562, 164571, 164582, 164592, 165431, 165619, ANSP: 152507, 216043, 277488, 349891, LACM: several specimens (ex.: 71-50, AHF 199-34), CAS: 23007, BMNH: 196194 (syntypes of Conus prytanis Sowerby, 1882), MHNG: 964-154, CDRS: 498, 499, 500, 1117, 1558, FNRS-Belgian expedition to the Galapagos, 1984, MHNG expedition to the Galapagos, 1993

Origin: Native

Status

Least concern

Distribution

Map of specimen collection localities or observation records for this species in our collections database.

Distribution: South of Baja California to Ecuador (Galapagos Islands)

References

  • Bustamante, R.H. Vinueza, L.R., Smith, F., Banks, S., Calvopiña, M., Francisco, V., Chiriboga, A., Harris, J. (2002) Comunidades submareales rocosas I: Organismos sésiles y mesoinvertebrados móviles. In: Danulat, E. & Edgar, G.J. (eds.) (2002): Reserva Marina de Galápagos. Línea Base de la Biodiversidad. Fundación Charles Darwin/Servicio Parque Nacional Galápagos, Santa Cruz, Galápagos, Ecuador, p. 38-67.
  • Finet, Y. (2001) The marine mollusks of the Galapagos Islands: a documented faunal list. Editions du Muséum d' Histoire naturelle, Genève, 237 pp.
  • Hickman, C.P. Jr. Finet, Y. (1999) A Field Guide to the Marine Molluscs of Galápagos. Sugar Spring Press, Lexington, Virginia, 150 pp.
  • IUCN (2023) The IUCN Red List of Threatened Species. Version 2022-2 Https://www.iucnredlist.org
  • Keen, A.M. (1958) Sea Shells of Tropical West America. Stanford University Press, Palo Alto, 1st edition, 624 pp.
  • Sowerby, G.B., (I) (1834-35) Characters of new genera and species of Mollusca and Conchifera, collected by Mr. Cuming. Proceedings of the Zoological Society of London (1834): 6-8 (May 14, 1834), 17-19, 21-22 (June 17, 1834), 46-47 (Sept. 26, 1834), 68-72 (Nov. 25, 1834), 87-89 (Oct. 25, 1834), 123-128 (Mar. 20, 1835).

You are welcome to download and use the information found in this page, acknowledging its source.

This page should be cited as follows:

"Galapagos Species Database, Conus diadema", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=8103. Accessed 31 October 2026.