Galapagos Species Database
The Galapagos Species Database shares the information about the species from our Natural History Collections.
Conus diadema
cono diadema, Diadem cone, crowned cone
Length: 46 mm; diameter: 20 mm.
Shallow water (less than 200 m depth), rocky intertidal and subtidal.
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
Map of specimen collection localities or observation records for this species in our collections database.
Distribution: South of Baja California to Ecuador (Galapagos Islands)
- 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.