Galapagos Species Database
The Galapagos Species Database shares the information about the species from our Natural History Collections.
Larkinia multicostata
Arca costillosa, Many-ribbed ark
(A. multicostata) Length: 99 mm.
(A. multicostata) Shallow water (less than 200 m depth), sandy bottoms from 0-130 m, most common 20-50 m, and in the subtidal to depths of dredging.
Domain
Eukaryota
Kingdom
Animalia
Phylum
Mollusca
Class
Bivalvia
Order
Arcida
Superfamily
Arcoidea
Family
Arcidae
Genus
Larkinia
Species
multicostata
Taxon category: Accepted
Syn.: Anadara multicostata (G. B. Sowerby I, 1833), Arca brandtii Philippi, 1845, Arca camuloensis Osmont, 1904, Arca multicostata G. B. Sowerby I, 1833 (Horton et al., 2021); (A. multicostata) LACM: HH-166, CAS: 1158, 23169, CDRS: 224, 601, 854, FNRS-Belgian expedition to the Galapagos, 1984, MHNG: expedition to the Galapagos, 1993
Origin: Native
Map of specimen collection localities or observation records for this species in our collections database.
Distribution: (A. multicostata) Coast of Baja California to Panama 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.
- Fischer, W. Krupp, F., Schneider, W., Sommer, C., Carpenter, K.E. & Niem, V.H. (1995) Guia FAO para la identificación de especies para los fines de la pesca. Pacifico centro-oriental. Vol. I. Plantas e Invertebrados. FAO, Roma, 646 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.
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, Larkinia multicostata", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=19944. Accessed 30 October 2026.