Galapagos Species Database
The Galapagos Species Database shares the information about the species from our Natural History Collections.
Mammilla caprae
Caracol lunar de labios pardos, Brown-lipped moonsnail
(P. caprae) Length: 30 mm.
(P. caprae) Shallow water (less than 200 m depth).
Domain
Eukaryota
Kingdom
Animalia
Phylum
Mollusca
Class
Gastropoda
Order
Littorinimorpha
Superfamily
Naticoidea
Family
Naticidae
Genus
Mammilla
Species
caprae
Taxon category: Accepted
Syn.: Polinices caprae (Philippi, 1852) (Horton et al., 2021); (P. caprae) AMNH: 110384, ANSP: 152511, 336153, CAS: 27790 (previously misidentified as Polinices otis), CDRS: 375, C.P. Hickman colletion no. 97-227 (now in CDRS), FNRS-Belgian expedition to the Galapagos, 1984
Origin: Native
Map of specimen collection localities or observation records for this species in our collections database.
Distribution: (P. caprae) Mexico (Mazatlan) 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.
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, Mammilla caprae", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=19953. Accessed 30 October 2026.