Euspira Temporal range: Triassic - Recent PreꞒ Ꞓ O S D C P T J K Pg N
Euspira catena
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Superfamily:	Naticoidea
Family:	Naticidae
Genus:	Euspira Agassiz, 1838
Synonyms[1]
† Labellinacca Cossmann, 1919 Lunatia Gray, 1847 Mamma (Lunatia) Gray, 1847 junior subjective synonym Natica (Euspira) Agassiz, 1837 Natica (Lunatia) Gray, 1847 Polinices (Euspira) Agassiz, 1838 Polinices (Lunatia) Gray, 1847 Uber (Euspira) Agassiz, 1837

Euspira is a genus of medium-sized sea snails, marine gastropod molluscs in the subfamily Polinicinae of the family Naticidae, the moon snails.^[1]

This genus is known in the fossil records from the Triassic to the Quaternary (age range: from 242.0 to 0.0 million years ago). Fossils are found in the marine strata throughout the world. There are about 25 extinct species.^[2]

Species within the genus Euspira include:^[1][2]

Species brought into synonymy

• Euspira acosmita Dall, 1919: synonym of Cryptonatica affinis (Gmelin, 1791)
• Euspira bahamensis Dall, 1925: synonym of Sigatica semisulcata (Gray, 1839)
• Euspira canonica Dall, 1919: synonym of Euspira pallida (Broderip & G.B. Sowerby I, 1829)
• Euspira draconis (Dall, 1903): synonym of Glossaulax draconis (Dall, 1903)
• Euspira falklandica (Preston, 1913): synonym of Falsilunatia falklandica (Preston, 1913)
• Euspira fortunei (Reeve, 1855): synonym of Laguncula pulchella Benson, 1842
• Euspira immaculata (Totten, 1835): synonym of Polinices immaculatus (Totten, 1835)
• Euspira lewisii (Gould, 1847): synonym of Lunatia lewisii (Gould, 1847)
• Euspira nana (Møller, 1842): synonym of Pseudopolinices nanus (Møller, 1842)
• Euspira patagonica (Philippi, 1845): synonym of Falsilunatia patagonica (Philippi, 1845)
• Euspira poliana (delle Chiaje, 1830): synonym of Euspira pulchella (Risso, 1826)
• Euspira politiana Dall, 1919: synonym of Lunatia pallida (Broderip & G.B. Sowerby I, 1829)
• Euspira pulchella (Risso, 1826): synonym of Euspira nitida (Donovan, 1804)
• Euspira rouxi (Nicklès, 1952): synonym of Natica rouxi Nicklès, 1952
• Euspira sandwichensis (Dall, 1895): synonym of Natica sandwichensis (Dall, 1895)
• Euspira venusta Suter, 1907: synonym of Globisinum venustum (Suter, 1907)

• Sowerby J. 1837. Mineral-Conchologie Grossbrittaniens, von James Sowerby; deutsche Bearbeitung, herausgegeben von Hercules Nicolet, durchgesehen von Dr. Agassiz. Neuchatel: H. Nicolet, 52 pp., 21 pis. page(s): 14
• Backeljau, T. (1986). Lijst van de recente mariene mollusken van België [List of the recent marine molluscs of Belgium]. Koninklijk Belgisch Instituut voor Natuurwetenschappen: Brussels, Belgium. 106 pp
• Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). ISBN 0-915826-22-4. XII, 195 pp
• Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180–213

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• Kabat A. R. (1991). The classification of the Naticidae (Mollusca Gastropoda). Review and analysis of the supraspecific taxa. Bulletin of the Museum of Comparative Zoology 152: 417-449
• Huelsken T., Tapken D., Dahlmann T., Wägele H., Riginos C. & Hollmann M. (2012) Systematics and phylogenetic species delimitation within Polinices s.l. (Caenogastropoda: Naticidae) based on molecular data and shell morphology. Organisms, Diversity & Evolution 12: 349-375