Galapagos Species Database
The Galapagos Species Database shares the information about the species from our Natural History Collections.
Opalia diadema
espiral coronado, Crowned wentletrap
Height: 13,5 mm; diameter: 6 mm, ribs,ten.
Shallow water (less than 200 m depth), low littoral.
Domain
Eukaryota
Kingdom
Animalia
Phylum
Mollusca
Class
Gastropoda
Order
[unassigned] Caenogastropoda
Superfamily
Epitonioidea
Family
Epitoniidae
Genus
Opalia
Species
diadema
Taxon category: Accepted
AMNH: 15014, 117913, ANSP: 19719, USNM: 678904, 812793, LACM: 66-123, A.7066, AHF 154-34, AHF 333-35, CAS: 2757, 38863, BMNH: 1966652 (Syntypes, type locality: Galapagos), CDRS: 354 B, MHNG: expedition to the Galapagos, 1993
Origin: Native
Map of specimen collection localities or observation records for this species in our collections database.
Distribution: México to Perú and Ecuador (Galapagos Islands)
- Finet, Y. (1991) The Marine Mollusks of the Galapagos Islands. In: Galápagos Marine Invertebrate. Taxonomy, Biogeography, and Evolution in Darwin's Islands. Plenum Press. New York and London, p. 253-280.
- 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.
- Horton, T. Horton, T., Kroh, A., Ahyong, S., Bailly, N., Boyko, C. B., Brandão, S. N., Gofas, S., Hooper, J. N. A., Hernandez, F., Holovachov, O., Mees, J., Molodtsova, T. N., Paulay, G., Decock, W., Dekeyzer, S., Poffyn, G., Vandepitte, L., Vanhoorne, B., Adlard, R., ... Zhao, Z. (2021) World Register of Marine Species. Available from https://www.marinespecies.org at VLIZ.
- Keen, A.M. (1958) Sea Shells of Tropical West America. Stanford University Press, Palo Alto, 1st edition, 624 pp.
- Sowerby, G.B., Jr. (II) (1832-41) The Conchological Illustrations, ptls. 1-200, pls. 1-200, (including the text of the "Catalogues of genera", which is seperately paged. London.
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, Opalia diadema", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=8686. Accessed 30 October 2026.