WoRMS taxon details
Alderia modesta (Lovén, 1844)
141555 (urn:lsid:marinespecies.org:taxname:141555)
accepted
Species
Alderia amphibia Allman, 1845 · unaccepted (nomen nudum)
Alderia scaldiana Nyst, 1855 · unaccepted > junior subjective synonym
Stiliger amphibius Allman, 1845 · unaccepted (synonym)
Stiliger modestus Lovén, 1844 · unaccepted (original combination)
Stiliger scaldianus (Nyst, 1855) · unaccepted (synonym)
marine, brackish, terrestrial
(of Stiliger modestus Lovén, 1844) Lovén, S. (1844). Om nordiska hafs-mollusker. <em>Öfversigt af Kungliga Vetenskaps-Akademiens Förhandlingar, Stockholm.</em> 1(3): 48-53., available online at https://www.biodiversitylibrary.org/page/2602980
page(s): 49 [details]
page(s): 49 [details]
Distribution Alderia modesta is the only species of Alderia found in the northeastern Atlantic. European populations have been widely...
Distribution This species is a typical brackish species.
Distribution Alderia modesta is the only species of Alderia found in the northeastern Atlantic. European populations have been widely reported from the United Kingdom and Ireland, Scandinavia and surrounding waters, the German Baltic coast as well as estuaries in the Netherlands, Belgium and France. There are no confirmed records from the Mediterranean. [details]
Distribution This species is a typical brackish species.
Distribution This species is a typical brackish species. [details]
MolluscaBase eds. (2025). MolluscaBase. Alderia modesta (Lovén, 1844). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=141555 on 2025-07-13
The webpage text is licensed under a Creative Commons
Attribution 4.0 License
Nomenclature
original description
(of Alderia scaldiana Nyst, 1855) Nyst H. 1855. Description succincte d'un nouveau mollusque marin des rives de l'Escaut. <i>Bulletins de l'Académie Royale des Sciences, des Lettres et des Beaux-Arts de Belgique</i>, 22: 435-437, available online at http://books.google.com/books?id=tPozAAAAMAAJ&pg=PA436
page(s): 435, figs 1-2 [details]
original description (of Stiliger modestus Lovén, 1844) Lovén, S. (1844). Om nordiska hafs-mollusker. <em>Öfversigt af Kungliga Vetenskaps-Akademiens Förhandlingar, Stockholm.</em> 1(3): 48-53., available online at https://www.biodiversitylibrary.org/page/2602980
page(s): 49 [details]
basis of record Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M.J. et al. (eds), European Register of Marine Species: a check-list of the marine species in Europe and a bibliography of guides to their identification. <em>Patrimoines Naturels.</em> 50: 180-213., available online at http://www.vliz.be/imisdocs/publications/ocrd/254404.pdf [details]
page(s): 435, figs 1-2 [details]
original description (of Stiliger modestus Lovén, 1844) Lovén, S. (1844). Om nordiska hafs-mollusker. <em>Öfversigt af Kungliga Vetenskaps-Akademiens Förhandlingar, Stockholm.</em> 1(3): 48-53., available online at https://www.biodiversitylibrary.org/page/2602980
page(s): 49 [details]
basis of record Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M.J. et al. (eds), European Register of Marine Species: a check-list of the marine species in Europe and a bibliography of guides to their identification. <em>Patrimoines Naturels.</em> 50: 180-213., available online at http://www.vliz.be/imisdocs/publications/ocrd/254404.pdf [details]
Taxonomy
status source
Ellingson, R. A.; Vo, J.; Llaban, A.; Lugo, L. M.; Vendetti, J. E.; Krug, P. J. (2025). Coastal elites: Recurrent trans‐Arctic migration and vicariance in a cosmopolitan sea slug driven by Pleistocene glacial cycles. <em>Zoologica Scripta.</em> DOI: 10.1111/zsc.12738: 1-19., available online at https://doi.org/10.1111/zsc.12738 [details]
Other
additional source
Bleakney, J. S. (1996). Sea slugs of Atlantic Canada and the Gulf of Maine. <em>The Nova Scotia Museum Field Guide Series. Nimbus Publishing. Halifax.</em> 1-216. [details]
additional source Liu, J.Y. [Ruiyu] (ed.). (2008). Checklist of marine biota of China seas. <em>China Science Press.</em> 1267 pp. (look up in IMIS) [details] Available for editors
[request]
additional source Hayward, P.J. & J.S. Ryland (Eds.). (1990). The marine fauna of the British Isles and North-West Europe: 1. Introduction and protozoans to arthropods. <em>Clarendon Press: Oxford, UK.</em> 627 pp. (look up in IMIS) [details] Available for editors [request]
additional source Liu, J.Y. [Ruiyu] (ed.). (2008). Checklist of marine biota of China seas. <em>China Science Press.</em> 1267 pp. (look up in IMIS) [details] Available for editors
[request]additional source Hayward, P.J. & J.S. Ryland (Eds.). (1990). The marine fauna of the British Isles and North-West Europe: 1. Introduction and protozoans to arthropods. <em>Clarendon Press: Oxford, UK.</em> 627 pp. (look up in IMIS) [details] Available for editors
[request]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
From editor or global species database
Distribution Alderia modesta is the only species of Alderia found in the northeastern Atlantic. European populations have been widely reported from the United Kingdom and Ireland, Scandinavia and surrounding waters, the German Baltic coast as well as estuaries in the Netherlands, Belgium and France. There are no confirmed records from the Mediterranean. [details]Unreviewed
Classification Vader (1981) has placed A. modesta in a new family: Alderiidae. [details]Dimensions maximum size of 6 to 8 mm [details]
Distribution This species is a typical brackish species. [details]
Habitat infralittoral of the Gulf and estuary [details]
| Language | Name | |
|---|---|---|
| Dutch | kwelderslakgewone kwelderslak | [details] |
| English | modest alderia | [details] |
| German | Salzwiesen-Nacktschnecke | [details] |
To Barcode of Life (4 barcodes)
To Biodiversity Heritage Library (10 publications) (from synonym Alderia scaldiana Nyst, 1855)
To Biodiversity Heritage Library (83 publications)
To Biodiversity Heritage Library (9 publications) (from synonym Alderia amphibia Allman, 1845)
To European Nucleotide Archive, ENA (Alderia modesta)
To GenBank (105 nucleotides; 93 proteins)
To GenBank (105 nucleotides; 93 proteins) (from synonym Stiliger modestus Lovén, 1844)
To PESI (from synonym Stiliger amphibius Allman, 1845)
To PESI (from synonym Stiliger scaldianus (Nyst, 1855))
To PESI (from synonym Stiliger modestus Lovén, 1844)
To PESI
To Sea Slug Forum (via archive.org)
To USNM Invertebrate Zoology Mollusca Collection
To Yale Peabody Museum of Natural History (YPM IZ 010783.GP)
To ITIS
To Biodiversity Heritage Library (10 publications) (from synonym Alderia scaldiana Nyst, 1855)
To Biodiversity Heritage Library (83 publications)
To Biodiversity Heritage Library (9 publications) (from synonym Alderia amphibia Allman, 1845)
To European Nucleotide Archive, ENA (Alderia modesta)
To GenBank (105 nucleotides; 93 proteins)
To GenBank (105 nucleotides; 93 proteins) (from synonym Stiliger modestus Lovén, 1844)
To PESI (from synonym Stiliger amphibius Allman, 1845)
To PESI (from synonym Stiliger scaldianus (Nyst, 1855))
To PESI (from synonym Stiliger modestus Lovén, 1844)
To PESI
To Sea Slug Forum (via archive.org)
To USNM Invertebrate Zoology Mollusca Collection
To Yale Peabody Museum of Natural History (YPM IZ 010783.GP)
To ITIS
