Lottia edmitchelli Lipps, 1966:250

Rocky shore limpet



Taxonomy & Nomenclature

Synonym/s: Acmaea mitchelli Lipps, 1963 (junior homonym); Acmaea edmitchelli Lipps, 1966; Collisella edmitchelli Lipps, 1966:250


Conservation Status

Extinct (Régnier et al., 2009; Cowie et al., 2017)

Last record: Middle Pleistocene (Powell, 2022); 1861 (no longer accepted) (Carlton, 2023)

IUCN status: Extinct



California, United States


Biology & Ecology










Original scientific description:

Lipps, J. H. (1966). A new name for Acmaea mitchelli Lipps. The Veliger 9: 250.


Other references:

Baillie, J. and Groombridge, B. (eds). 1996. 1996 IUCN Red List of Threatened Animals. pp. 378. International Union for Conservation of Nature, Gland, Switzerland and Cambridge, UK.

Bouchet, P. (1996a). Collisella edmitchelli. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.1. ( Downloaded on 15 July 2013.

Bouchet, P. (1996b). Collisella edmitchelli. The IUCN Red List of Threatened Species 1996: e.T5119A11116006. Accessed on 14 June 2022.

Carlton, James T. (1993). Neoextinctions of Marine Invertebrates. American Zoologist 33(6): 499-509.

Carlton, James T. (2023). Marine Invertebrate Neoextinctions: An Update and Call for Inventories of Globally Missing Species. Diversity 15(6): 782.

Carlton, JT, Geller, JB, Reaka-Kudla, ML and Norse, EA (1999) Historical extinctions in the sea. Annual Review of Ecology and Systematics 30, 515–538.

Cowie, Robert H., Régnier, Claire, Fontaine, Benoît, and Bouchet, Philippe. (2017). Measuring the Sixth Extinction: what do mollusks tell us? The Nautilus 131(1): 3-41.

del Monte-Luna, P, Lluch-Belda, D, Serviere-Zaragoza, E, Carmona, R, Reyes-Bonilla, H, Aurioles-Gamboa, D, Castro-Aguirre, JL, del Próo SA, G, Trujillo-Millán, O and Brook, BW (2007) Marine extinctions revisited. Fish and Fisheries 8(2), 107–122.

del Monte-Luna, Pablo et al. (2023). A review of recent and future marine extinctions. Cambridge Prisms: Extinction 1: e13.

Dulvy, Nicholas K., Pinnegar, John K. and Reynolds, John D. (2009). Holocene extinctions in the sea, pp. 129-150. In: Turvey, Samuel T. (ed.). Holocene Extinctions. Oxford, UK & New York, USA: Oxford University Press. xii + 352 pp.

Dulvy, NK, Sadovy, Y and Reynolds, JD (2003) Extinction vulnerability in marine populations. Fish and Fisheries 4(1), 25–64.

Lindberg, David R. (1978). On the Taxonomic Affinities of Collisella edmitchelli (Lipps) (Gastropoda: Acmaeidae) a Late Pleistocene Limpet from San Nicolas Island, California. Bulletin of the Southern California Academy of Sciences 77(2): 65-70.

Lindberg, David R. (1984). A Recent specimen of Collisella edmitchelli from San Pedro, California (Mollusca: Acmaeidae). Southern California Academy of Sciences, Bulletin of the Southern California Academy of Sciences 83(3): 148-151.

Lipps, J. H. (1963). A new species of Acmaea (Archaeogastropoda) from the Pleistocene of San Nicolas Island, California. Los Angeles County Museum Contributions in Science 75: 1-15.

MolluscaBase eds. (2021). MolluscaBase. Lottia edmitchelli (Lipps, 1966). Accessed at: on 2022-04-03

Powell, C. L. (2022). The extinct limpet Lottia edmitchelli (Lipps, 1963) from the Southern California Bight, U.S.A. PaleoBios 39(3): 1-7.

Régnier, Claire, Fontaine, Benoît and Bouchet, Philippe. (2009). Not Knowing, Not Recording, Not Listing: Numerous Unnoticed Mollusk Extinctions. Conservation Biology 23(5): 1214-1221.

Turgeon, D.; Quinn, J.F.; Bogan, A.E.; Coan, E.V.; Hochberg, F.G.; Lyons, W.G.; Mikkelsen, P.M.; Neves, R.J.; Roper, C.F.E.; Rosenberg, G.; Roth, B.; Scheltema, A.; Thompson, F.G.; Vecchione, M.; Williams, J.D. (1998). Common and scientific names of aquatic invertebrates from the United States and Canada: mollusks. 2nd ed. American Fisheries Society Special Publication, 26. American Fisheries Society: Bethesda, MD (USA). ISBN 1-888569-01-8. IX, 526 + cd-rom pp.

Wolff, WJ (2000) The south-eastern North Sea: Losses of vertebrate fauna during the past 2000 years. Biological Conservation 95, 209–217.


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