Galapagos Species Database
The Galapagos Species Database shares the information about the species from our Natural History Collections.
Achelous tuberculatus
nadador tuberculado, Tiberculated swimming crab
Caparace width between long lateral spines to 72 mm.
Origin and Affin. Eastern Pacific. Littoral and Sublittoral to 65 m.
Domain
Eukaryota
Kingdom
Animalia
Phylum
Arthropoda
Class
Malacostraca
Order
Decapoda
Suborder
Pleocyemata
Superfamily
Portunoidea
Family
Portunidae
Section
Eubrachyura
Genus
Achelous
Species
tuberculatus
Taxon category: Accepted
Syn.: Portunus tuberculatus (Stimpson, 1860), fide Appeltans et al. (2013)
Origin: Native
Map of specimen collection localities or observation records for this species in our collections database.
Distribution: Gulf of California to Ecuador including Galapagos Islands
- 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.) (2013) World Register of Marine Species (WoRMS). Available online at http://www.marinespecies.org.
- Garth, J.S. (1991) Taxonomy, Distribution, and Ecology of Galápagos. Brachyura. In: James, M.J. (ed.): Galápagos Marine Invertebrates. Taxonomy, Biogeography, and Evolution in Darwin's Islands. Plenum Press. New York and London, p. 123-155.
- Hickman, C.P. Jr. Zimmerman, T.L. (2000) A Field Guide to Crustaceans of Galápagos. Sugar Spring Press, Lexington, Virginia, 156 pp.
- IUCN (2010) IUCN Red List of Threatened Species www.iucnredlist.org
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, Achelous tuberculatus", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=17647. Accessed 3 November 2026.