WoRMS taxon details
Simnia Risso, 1826
138307 (urn:lsid:marinespecies.org:taxname:138307)
accepted
Genus
Simnia nicaeensis Risso, 1826 accepted as Simnia spelta (Linnaeus, 1758) (type by subsequent designation)
Amphiperas (Neosimnia) P. Fischer, 1884 · unaccepted > junior subjective synonym
Amphiperas (Simnia) Risso, 1826 · unaccepted > superseded rank
Neosimnia P. Fischer, 1884 · unaccepted > junior subjective synonym
Ovula (Neosimnia) P. Fischer, 1884 · unaccepted > junior subjective synonym
Ovula (Simnia) Risso, 1826 · unaccepted > superseded rank
Simia [sic] · unaccepted (misspelling)
Simnia (Neosimnia) P. Fischer, 1884 · unaccepted > junior subjective synonym
Simnia (Simnia) Risso, 1826 · unaccepted > superseded rank
Spiculata C. N. Cate, 1973 · unaccepted > junior subjective synonym
- Species Simnia arcuata (Reeve, 1865)
- Species Simnia avena (G. B. Sowerby I, 1833)
- Species Simnia barbarensis (Dall, 1892)
- Species Simnia bartschi (C. N. Cate, 1973)
- Species Simnia bijuri (C. N. Cate, 1976)
- Species Simnia hammesi (Bertsch & Bibbey, 1982)
- Species Simnia loebbeckeana (Weinkauff, 1881)
- Species Simnia macleani (C. N. Cate, 1976)
- Species Simnia pliomajor (Sacco, 1894)
- Species Simnia quaylei H. N. Lowe, 1935
- Species Simnia sculptura (C. N. Cate, 1973)
- Species Simnia senegalensis (F. A. Schilder, 1931)
- Species Simnia spelta (Linnaeus, 1758)
- Species Simnia purpurea Risso, 1826 (uncertain > nomen dubium)
- Subgenus Simnia (Neosimnia) P. Fischer, 1884 accepted as Simnia Risso, 1826 (unaccepted > junior subjective synonym)
- Species Simnia (Neosimnia) aureocincta Dall, 1899 accepted as Cyphoma aureocinctum (Dall, 1889)
- Species Simnia (Neosimnia) illyrica F. A. Schilder, 1927 accepted as Simnia illyrica F. A. Schilder, 1927 accepted as Simnia spelta (Linnaeus, 1758)
- Species Simnia (Neosimnia) spelta (Linnaeus, 1758) accepted as Neosimnia spelta (Linnaeus, 1758) accepted as Simnia spelta (Linnaeus, 1758)
- Subgenus Simnia (Prosimnia) F. A. Schilder, 1927 accepted as Prosimnia F. A. Schilder, 1927 (unaccepted > superseded rank)
- Subgenus Simnia (Simnia) Risso, 1826 accepted as Simnia Risso, 1826 (unaccepted > superseded rank)
- Subgenus Simnia (Simnialena) C. N. Cate, 1973 accepted as Simnialena C. N. Cate, 1973 (unaccepted > superseded rank)
- Species Simnia acicularis (Lamarck, 1811) accepted as Cymbovula acicularis (Lamarck, 1810)
- Species Simnia aequalis (G. B. Sowerby I, 1832) accepted as Neosimnia avena (G. B. Sowerby I, 1833) accepted as Simnia avena (G. B. Sowerby I, 1833)
- Species Simnia aperta (G. B. Sowerby II, 1849) accepted as Xandarovula aperta (G. B. Sowerby II, 1849) (unaccepted > superseded combination)
- Species Simnia aureocincta Dall, 1899 accepted as Cyphoma aureocinctum (Dall, 1889) (unaccepted > superseded combination)
- Species Simnia brevirostris (Schumacher, 1817) accepted as Phenacovolva brevirostris (Schumacher, 1817)
- Species Simnia hiscocki Lorenz & Melaun, 2011 accepted as Xandarovula hiscocki (Lorenz & Melaun, 2011) (unaccepted > superseded combination)
- Species Simnia hyalina Lorenz & Fehse, 2009 accepted as Xandarovula hyalina (Lorenz & Fehse, 2009) (unaccepted > superseded combination)
- Species Simnia illyrica F. A. Schilder, 1927 accepted as Simnia spelta (Linnaeus, 1758) (unaccepted > junior subjective synonym)
- Species Simnia inflexa (G. B. Sowerby I, 1832) accepted as Simnialena rufa (G. B. Sowerby I, 1833)
- Species Simnia inflexa (G. B. Sowerby I, 1832) sensu F. A. Schilder, 1941 accepted as Simnialena rufa (G. B. Sowerby I, 1833)
- Species Simnia jacintoi Fehse & Trigo, 2015 accepted as Xandarovula jacintoi (Fehse & Trigo, 2015) (unaccepted > superseded combination)
- Species Simnia nicaeensis Risso, 1826 accepted as Simnia spelta (Linnaeus, 1758) (junior synonym)
- Species Simnia nicaoensis [sic] accepted as Simnia nicaeensis Risso, 1826 accepted as Simnia spelta (Linnaeus, 1758) (unaccepted > misspelling - incorrect subsequent spelling, by J. A. Allan, 1956)
- Species Simnia patula (Pennant, 1777) accepted as Xandarovula patula (Pennant, 1777) (unaccepted > superseded combination)
- Species Simnia piragua (Dall, 1889) accepted as Calcarovula piragua (Dall, 1889) (unaccepted > superseded combination)
- Species Simnia rufa (G. B. Sowerby I, 1832) accepted as Simnialena rufa (G. B. Sowerby I, 1833)
- Species Simnia sowerbyana (Weinkauff, 1881) accepted as Phenacovolva brevirostris (Schumacher, 1817)
- Species Simnia uniplicata (G. B. Sowerby II, 1849) accepted as Simnialena uniplicata (G. B. Sowerby II, 1849)
- Species Simnia vidleri (G. B. Sowerby III, 1881) accepted as Simnia arcuata (Reeve, 1865) (unaccepted > junior subjective synonym)
- Species Simnia xanthochila Kuroda, 1929 accepted as Contrasimnia xanthochila (Kuroda, 1928) (superseded combination)
marine
Risso, A. (1826 - 1827). Histoire naturelle des principales productions de l'Europe Méridionale et particulièrement de celles des environs de Nice et des Alpes Maritimes. [Natural history of the main productions of Southern Europe and particularly those of the area around Nice and the Maritime Alps. <em>In: Levrault, F.G. (ed.). vol. 3. Mammifères. Oiseaux. Poissons / vol. 4. Mollusques. Annélides / vol. 5. Crustacés. Myriapodes, scorpionides, arachnides et acarides. Insectes. Vers intestinaux. Radiaires. Zoophytes].</em> 400 pp., 13 pls. [volumes 1-5., available online at http://www.biodiversitylibrary.org/bibliography/58984 [details] 
Taxonomy Dolin & Ledon (2002) considered that the lectotype of Simnia nicaeensis Risso, 1826, type species of Simnia Risso, 1826, is...
Taxonomy Dolin & Ledon (2002) considered that the lectotype of Simnia nicaeensis Risso, 1826, type species of Simnia Risso, 1826, is a juvenile specimen of Simnia spelta (Linnaeus, 1758) type species of Neosimnia Fischer, 1884. This makes Simnia an objective synonym of Neosimnia. Accordingly, all the species treated in Lorenz & Fehse (2009) under Neosimnia should be accepted under Simnia and all the species treated by Lorenz & Fehse (2009) under Simnia should be accepted under Xandarovula. This view has been convincingly conforted by Nappo (2024).
However, molecular data presented by Nocella et al. (2024) show such a close relationship between Simnia spelta and Simnia patula (type species of Xandarovula that a generic separation is not warranted and Simnia, Neosimnia and Xandarovula are accordingly treated as synonyms. [details]
However, molecular data presented by Nocella et al. (2024) show such a close relationship between Simnia spelta and Simnia patula (type species of Xandarovula that a generic separation is not warranted and Simnia, Neosimnia and Xandarovula are accordingly treated as synonyms. [details]
MolluscaBase eds. (2026). MolluscaBase. Simnia Risso, 1826. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=138307 on 2026-05-17
Date
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Nomenclature
original description
Risso, A. (1826 - 1827). Histoire naturelle des principales productions de l'Europe Méridionale et particulièrement de celles des environs de Nice et des Alpes Maritimes. [Natural history of the main productions of Southern Europe and particularly those of the area around Nice and the Maritime Alps. <em>In: Levrault, F.G. (ed.). vol. 3. Mammifères. Oiseaux. Poissons / vol. 4. Mollusques. Annélides / vol. 5. Crustacés. Myriapodes, scorpionides, arachnides et acarides. Insectes. Vers intestinaux. Radiaires. Zoophytes].</em> 400 pp., 13 pls. [volumes 1-5., available online at http://www.biodiversitylibrary.org/bibliography/58984 [details] 
original description (of Spiculata C. N. Cate, 1973) Cate, C. N. (1973). A systematic revision of the recent cypraeid family Ovulidae. <em>The Veliger.</em> 15 (supplement): 1-117., available online at http://biodiversitylibrary.org/page/42495434 [details]
original description (of Ovula (Neosimnia) P. Fischer, 1884) Fischer, P. (1880-1887). <i>Manuel de conchyliologie et de paléontologie conchyliologique, ou histoire naturelle des mollusques vivants et fossiles suivi d'un Appendice sur les Brachiopodes par D. P. Oehlert. Avec 23 planches contenant 600 figures dessinées par S. P. Woodward.</i>. Paris: F. Savy. Published in 11 parts (fascicules), xxiv + 1369 pp., 23 pls. [1: 1-112, 21 September 1880; 2: 113-192, 16 March 1881; 3: 193-304, 28 July 1881; 4: 305-416, 5 May 1882; 5: 417-512, 21 February 1883; 6: 513-608, 20 December 1883; 7: 609-688, 30 June 1884; 8: 689-784, 29 January 1885; 9: 785-896, 31 August 1885; 10: 897-1008, 30 April 1886; 11: 1009-1369, 15 June 1887]. , available online at http://www.biodiversitylibrary.org/item/47340
page(s): 664 [details]
original description (of Spiculata C. N. Cate, 1973) Cate, C. N. (1973). A systematic revision of the recent cypraeid family Ovulidae. <em>The Veliger.</em> 15 (supplement): 1-117., available online at http://biodiversitylibrary.org/page/42495434 [details]
original description (of Ovula (Neosimnia) P. Fischer, 1884) Fischer, P. (1880-1887). <i>Manuel de conchyliologie et de paléontologie conchyliologique, ou histoire naturelle des mollusques vivants et fossiles suivi d'un Appendice sur les Brachiopodes par D. P. Oehlert. Avec 23 planches contenant 600 figures dessinées par S. P. Woodward.</i>. Paris: F. Savy. Published in 11 parts (fascicules), xxiv + 1369 pp., 23 pls. [1: 1-112, 21 September 1880; 2: 113-192, 16 March 1881; 3: 193-304, 28 July 1881; 4: 305-416, 5 May 1882; 5: 417-512, 21 February 1883; 6: 513-608, 20 December 1883; 7: 609-688, 30 June 1884; 8: 689-784, 29 January 1885; 9: 785-896, 31 August 1885; 10: 897-1008, 30 April 1886; 11: 1009-1369, 15 June 1887]. , available online at http://www.biodiversitylibrary.org/item/47340
page(s): 664 [details]
Other
additional source
Cate, C. N. (1973). A systematic revision of the recent cypraeid family Ovulidae. <em>The Veliger.</em> 15 (supplement): 1-117., available online at http://biodiversitylibrary.org/page/42495434 [details]
additional source Dolin L. & Ledon D. (2002). Nouveaux taxons et discussion de la systématique des genres correspondants d'Ovulidae (Mollusca, Caenogastropoda) de l'Éocène inférieur de Gan (France). <em>Geodiversitas.</em> 24(2): 329-347., available online at http://sciencepress.mnhn.fr/sites/default/files/articles/pdf/g2002n2a4.pdf [details]
additional source Dolin L. & Ledon D. (2002). Nouveaux taxons et discussion de la systématique des genres correspondants d'Ovulidae (Mollusca, Caenogastropoda) de l'Éocène inférieur de Gan (France). <em>Geodiversitas.</em> 24(2): 329-347., available online at http://sciencepress.mnhn.fr/sites/default/files/articles/pdf/g2002n2a4.pdf [details]
Present
Inaccurate
Introduced: alien
Containing type locality
From editor or global species database
Taxonomy Dolin & Ledon (2002) considered that the lectotype of Simnia nicaeensis Risso, 1826, type species of Simnia Risso, 1826, is a juvenile specimen of Simnia spelta (Linnaeus, 1758) type species of Neosimnia Fischer, 1884. This makes Simnia an objective synonym of Neosimnia. Accordingly, all the species treated in Lorenz & Fehse (2009) under Neosimnia should be accepted under Simnia and all the species treated by Lorenz & Fehse (2009) under Simnia should be accepted under Xandarovula. This view has been convincingly conforted by Nappo (2024).However, molecular data presented by Nocella et al. (2024) show such a close relationship between Simnia spelta and Simnia patula (type species of Xandarovula that a generic separation is not warranted and Simnia, Neosimnia and Xandarovula are accordingly treated as synonyms. [details]