Galapagos Species Database
The Galapagos Species Database shares the information about the species from our Natural History Collections.
Microcassiope xantusii
guijarro cassiope, Cassiope pebble crab
Caparace width to 12.5 mm.
Origin and Affin. Atlantic. Littoral ans Sublittoral under rocks.
Domain
Eukaryota
Kingdom
Animalia
Phylum
Arthropoda
Class
Malacostraca
Order
Decapoda
Suborder
Pleocyemata
Superfamily
Xanthoidea
Family
Xanthidae
Genus
Microcassiope
Species
xantusii
Taxon category: Accepted
Syn.: Pilumnus beebei Boone, 1927, Xanthias serrulata Finnegan, 1931, Xanthodes xantusii Stimpson, 1871, fide Appeltans et al. (2010); was changed of Micropanope xantusii Garth (1991)
Origin: Native
Map of specimen collection localities or observation records for this species in our collections database.
Distribution: Gulf of California and Panamic, Baja California and Ecuador (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.) (2010) 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. Version 2010.1. <www.iucnredlist.org>. Downloaded on 26 April 2010.
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, Microcassiope xantusii", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=8519. Accessed 1 November 2026.