WoRMS taxon details
Aplysia californica J. G. Cooper, 1863
240765 (urn:lsid:marinespecies.org:taxname:240765)
accepted
Species
Aplysia (Neaplysia) nettiae L. R. Winkler, 1959 · unaccepted > junior subjective synonym
Aplysia (Varria) californica J. G. Cooper, 1863 · alternative representation
Aplysia rehderi Eales, 1960 · unaccepted > junior subjective synonym (uncertain synonym)
Aplysia ritteri T. D. A. Cockerell, 1902 · unaccepted > junior subjective synonym
Aplysia robertsi (Pilsbry, 1895) · unaccepted
Tethys (Neaplysia) californica (J. G. Cooper, 1863) · unaccepted > superseded combination
Tethys (Neaplysia) ritteri T. D. A. Cockerell, 1901 · unaccepted > junior subjective synonym
Tethys californicus (J. G. Cooper, 1863) · unaccepted > superseded combination
Tethys robertsi Pilsbry, 1895 · unaccepted > junior subjective synonym
marine
Cooper J.G. (1863). On new or rare Mollusca inhabiting the coast of California.— No. II. <em>Proceedings of the California Academy of Sciences.</em> ser. 1, 3: 56–60., available online at https://www.biodiversitylibrary.org/page/3148141#page/64/mode/1up
page(s): 57, fig. 14 [details]
page(s): 57, fig. 14 [details]
Type locality contained in California
type locality contained in California [details]
Distribution North-eastern Pacific, from Monterey Bay, California (36° N) to Guaymas, Sonora, Mexico (27° N). Occasional records...
Distribution North-eastern Pacific, from Monterey Bay, California (36° N) to Guaymas, Sonora, Mexico (27° N). Occasional records north of this range, such as Yaquina Bay, Oregon, have been reported during El Niño events. [details]
MolluscaBase eds. (2026). MolluscaBase. Aplysia californica J. G. Cooper, 1863. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=240765 on 2026-07-25
Date
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Nomenclature
original description
Cooper J.G. (1863). On new or rare Mollusca inhabiting the coast of California.— No. II. <em>Proceedings of the California Academy of Sciences.</em> ser. 1, 3: 56–60., available online at https://www.biodiversitylibrary.org/page/3148141#page/64/mode/1up
page(s): 57, fig. 14 [details]
original description (of Aplysia rehderi Eales, 1960) Eales, N. B. (1960). Revision of the world species of Aplysia. <em>Bulletin of the British Museum, Natural History (Zoology.</em> 5(10): 267-404., available online at https://www.biodiversitylibrary.org/page/2342260 [details] Available for editors
[request]
original description (of Aplysia (Neaplysia) nettiae L. R. Winkler, 1959) Winkler, L. R. (1959). A new species of sea hare from California waters. <em>Bulletin of the Southern California Academy of Sciences.</em> 58(1): 8-10., available online at https://www.biodiversitylibrary.org/page/34305264
page(s): 8-10, pl. 5 [details]
original description (of Tethys robertsi Pilsbry, 1895) Pilsbry, H. A. (1895-1896). <i>Manual of conchology, structural and systematic, with illustrations of the species</i>. Ser. 1. Vol. 16: Philinidae, Gastropteridae, Aglajidae, Aplysiidae, Oxynoeidae, Runcinidae, Umbraculidae, Pleurobranchidae. pp vii, 1-262, pls 1-74. Philadelphia, published by the Conchological Section, Academy of Natural Sciences. [pp. 1-48, pls. 1-16, Aug. 20, 1895; pp. 49-112, pls. 17-31, Nov. 26, 1895; pp. 113-160, pls. 32-43, Mar. 13, 1896; pp. 161-262, pls. 44-74, Sept. 23, 1896; pp. i-vii, Sept. 23, 1896]. , available online at http://www.biodiversitylibrary.org/item/41491
page(s): 89; pl. 55 figs 5-6 [1896] [details]
original description (of Tethys (Neaplysia) ritteri T. D. A. Cockerell, 1901) Cockerell, T. D. A. (1901). A new <i>Tethys</i> from California. <em>The Nautilus.</em> 15(8): 90-91., available online at https://www.biodiversitylibrary.org/page/1738477 [details]
basis of record Valdés A. (2019). Northeast Pacific benthic shelled sea slugs. <em>Zoosymposia.</em> 13: 242-304., available online at http://dx.doi.org/10.11646/zoosymposia.13.1.21
page(s): 256, figs 6D, 7A-D [details] Available for editors [request]
page(s): 57, fig. 14 [details]
original description (of Aplysia rehderi Eales, 1960) Eales, N. B. (1960). Revision of the world species of Aplysia. <em>Bulletin of the British Museum, Natural History (Zoology.</em> 5(10): 267-404., available online at https://www.biodiversitylibrary.org/page/2342260 [details] Available for editors
[request]original description (of Aplysia (Neaplysia) nettiae L. R. Winkler, 1959) Winkler, L. R. (1959). A new species of sea hare from California waters. <em>Bulletin of the Southern California Academy of Sciences.</em> 58(1): 8-10., available online at https://www.biodiversitylibrary.org/page/34305264
page(s): 8-10, pl. 5 [details]
original description (of Tethys robertsi Pilsbry, 1895) Pilsbry, H. A. (1895-1896). <i>Manual of conchology, structural and systematic, with illustrations of the species</i>. Ser. 1. Vol. 16: Philinidae, Gastropteridae, Aglajidae, Aplysiidae, Oxynoeidae, Runcinidae, Umbraculidae, Pleurobranchidae. pp vii, 1-262, pls 1-74. Philadelphia, published by the Conchological Section, Academy of Natural Sciences. [pp. 1-48, pls. 1-16, Aug. 20, 1895; pp. 49-112, pls. 17-31, Nov. 26, 1895; pp. 113-160, pls. 32-43, Mar. 13, 1896; pp. 161-262, pls. 44-74, Sept. 23, 1896; pp. i-vii, Sept. 23, 1896]. , available online at http://www.biodiversitylibrary.org/item/41491
page(s): 89; pl. 55 figs 5-6 [1896] [details]
original description (of Tethys (Neaplysia) ritteri T. D. A. Cockerell, 1901) Cockerell, T. D. A. (1901). A new <i>Tethys</i> from California. <em>The Nautilus.</em> 15(8): 90-91., available online at https://www.biodiversitylibrary.org/page/1738477 [details]
basis of record Valdés A. (2019). Northeast Pacific benthic shelled sea slugs. <em>Zoosymposia.</em> 13: 242-304., available online at http://dx.doi.org/10.11646/zoosymposia.13.1.21
page(s): 256, figs 6D, 7A-D [details] Available for editors
[request]Other
additional source
Winkler, L. R. (1959). Variability of shell in <i>Aplysia californica</i>. <em>The Nautilus.</em> 72(3): 73-75, pl. 9., available online at https://www.biodiversitylibrary.org/page/8521114 [details]
additional source 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. <i>American Fisheries Society Special Publication</i>, 26. American Fisheries Society: Bethesda, MD (USA). ISBN 1-888569-01-8. IX, 526 + cd-rom pp. (look up in IMIS)
page(s): 122 [details]
additional source Bebbington, A., 1977. Aplysiid species from eastern Australia with notes on the Pacific Ocean Aplysiomorpha (Gastropoda, Opistobranchia). Trans. Zool. Soc. Lond. 34 1: 87-147., available online at https://doi.org/10.1111/j.1096-3642.1977.tb00373.x [details]
additional source 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. <i>American Fisheries Society Special Publication</i>, 26. American Fisheries Society: Bethesda, MD (USA). ISBN 1-888569-01-8. IX, 526 + cd-rom pp. (look up in IMIS)
page(s): 122 [details]
additional source Bebbington, A., 1977. Aplysiid species from eastern Australia with notes on the Pacific Ocean Aplysiomorpha (Gastropoda, Opistobranchia). Trans. Zool. Soc. Lond. 34 1: 87-147., available online at https://doi.org/10.1111/j.1096-3642.1977.tb00373.x [details]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
From editor or global species database
Distribution North-eastern Pacific, from Monterey Bay, California (36° N) to Guaymas, Sonora, Mexico (27° N). Occasional records north of this range, such as Yaquina Bay, Oregon, have been reported during El Niño events. [details]
| Language | Name | |
|---|---|---|
| English | California seahare | [details] |
To Barcode of Life (6 barcodes)
To Biodiversity Heritage Library (1 publication) (from synonym Aplysia robertsi (Pilsbry, 1895))
To Biodiversity Heritage Library (2 publications) (from synonym Aplysia rehderi Eales, 1960)
To Biodiversity Heritage Library (48 publications)
To European Nucleotide Archive, ENA (Aplysia californica)
To GenBank (1588609 nucleotides; 27955 proteins)
To Global Biotic Interactions (GloBI)
To Sea Slug Forum (via archive.org)
To USNM Invertebrate Zoology Mollusca Collection
To USNM Invertebrate Zoology Mollusca Collection (from synonym Aplysia rehderi Eales, 1960)
To ITIS
To Biodiversity Heritage Library (1 publication) (from synonym Aplysia robertsi (Pilsbry, 1895))
To Biodiversity Heritage Library (2 publications) (from synonym Aplysia rehderi Eales, 1960)
To Biodiversity Heritage Library (48 publications)
To European Nucleotide Archive, ENA (Aplysia californica)
To GenBank (1588609 nucleotides; 27955 proteins)
To Global Biotic Interactions (GloBI)
To Sea Slug Forum (via archive.org)
To USNM Invertebrate Zoology Mollusca Collection
To USNM Invertebrate Zoology Mollusca Collection (from synonym Aplysia rehderi Eales, 1960)
To ITIS
Unreviewed
