Galapagos Species Database
The Galapagos Species Database shares the information about the species from our Natural History Collections.
Brachidontes adamsianus
About 15 mm in length, 7 mm in width.
Shallow water (less than 200 m depth)
Domain
Eukaryota
Kingdom
Animalia
Phylum
Mollusca
Class
Bivalvia
Order
Mytilida
Family
Mytilidae
Genus
Brachidontes
Species
adamsianus
Taxon category: Accepted
LACM: A.5498, CAS: 27221, 27231, 27232, 27536, 35903, 42184; Syn.: Mytilus adamsianus Dunker, 1857, Mytilus stearnsii Pilsbry & Raymond, 1898, fide Appeltans et al. (2010)
Origin: Native
Distribution: The northern end of the range is uncertain, perhaps California; thence southward through the Gulf to Ecuador and the Galapagos islands, occurring intertidally on rocky shores.
- Appeltans, W. Bouchet, P., Boxshall, G.A., Fauchald, K., Gordon, D.P., Hoeksema, B.W., Poore, G.C.B., van Soest, R.W.M., Stöhr, S., Walter, T.C., Costello, M.J. (eds.) (2010) World Register of Marine Species (WoRMS). Available online at http://www.marinespecies.org.
- 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.
- Keen, A.M. (1958) Sea Shells of Tropical West America. Stanford University Press, Palo Alto, 1st edition, 624 pp.
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, Brachidontes adamsianus", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=10393. Accessed 30 October 2026.