Galapagos Species Checklist

Lytechinus semituberculatus (Valenciennes in L. Agassiz, 1846)

erizo de mar, erizo verde, Green sea urchin

Depth: shore to 134 m.; Habitat: On rocky substrates.











Taxon category: Accepted

Synm: Anapesus semituberculatus (Valenciennes in L. Agassiz, 1846) (transferred to Lytechinus) Echinus (Psammechinus) semituberculatus Valenciennes in L. Agassiz, 1846 (transferred to Lytechinus) Psammechinus semituberculatus Valenciennes in L. Agassiz, 1846 (transferred to Lytechinus) Schizechinus semituberculatus (Valenciennes in L. Agassiz, 1846) (transferred to Lytechinus) Toxopneustes semituberculatus (Valenciennes in L. Agassiz, 1846) (transferred to Lytechinus), fide Horton et al. (2021)

Taxon origin: Native


IUCN Red List Category: Not evaluated


Map of specimen collection localities or observation records for this species in our collections database.

Distribution: Clarion Islands, Colombia to Peru and Ecuador including Galápagos Islands.


  • Hickman, C.P. Jr. (1998) A Field Guide to Sea Stars and other Echinoderms of Galápagos. Sugar Spring Press, Lexington, Virginia, 83 pp.
  • 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
  • Edgar, G.J. Fariña, J.M., Calvopiña, M., Martínez, C. & Banks, S. (2002) Comunidades submareales rocosas II: Peces y macroinvertebrados móviles. In: Danulat, E. & Edgar, G.J. (eds.) (2002): Reserva Marina de Galápagos. Línea Base de la Biodiversidad. Fundación Charles Darwin/Servicio Parque Nacional Galápagos, Santa Cruz, Galápagos, Ecuador, p. 68-97.
  • Maluf, L.Y. (1991) Echinoderm Fauna of the Galápagos Islands. In: James, M.J. (ed.): Galápagos Marine Invertebrates. Taxonomy, Biogeography, and Evolution in Darwin's Islands. Plenum Press, New York and London, p. 345-367.
  • Shepherd, S.A. Toral-Granda, V. & Edgar, G.J. (2003) Estimating the abundance of clustered and cryptic marine macro-invertebrates in the Galapagos with particular reference to sea cucumbers. Noticias de Galapagos 62: 36-39.
  • Azzaroli, M.L. (1974) Notes on Some Echinoderms from the Galapagos Islands. Gruppo Ricerche Scientifiche e Tecniche Subacquee, pp. 1-8.
  • Constant, P. (2007) Marine Life of the Galapagos. The Diver's guide to Fishes, Whales, Dolphins and marine Invertebrates, 307 pp.
  • Hickin, N. (1979) Animal life of the Galapagos. Ferundune Books, Faringdon, U.K., 236 pp.
  • Sonnenholzner, J. Brand, M., Francisco, V., Hearn, A., Luzuriaga, M., Guarderas, P & Navarro, J. (2013) Echinoderms of Ecuador. In: Alvarado, J & Solís-Marín, A. (eds.) (2013) Echinoderm research and Diversity in Latin America. 183-233 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 (WoRMS). WoRMS Editorial Board. Available from

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