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Mon 1 Dec 2025

Bivalvia | Veneroida | Cyrenoidea | Cyrenoididae

genus Polymesoda Rafinesque, 1820: synonymy

1 Recent freshwater species (15 total species)

Synonymy

Polymesoda Rafinesque, 1820

Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 319.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 61.
(intro'd as sub-gen. of Cyclas Lamarck, 1799)
Type species: Cyclas caroliniana Bosc, 1801 (orig. desig.) = Polymesoda caroliniana

Anomala Deshayes, 1854

Deshayes, 1854. Proc. Zool. Soc. London: 20.
Deshayes, 1854. Cat. Bivalves Brit. Mus. part 1: 255.
(homonym of v. Block, 1799 [Hymen.]; intro'd as sub-gen. of Cyrena Lamarck, 1818; renamed Egeta Adams & Adams, 1857)
Type species: Cyrena anomala Deshayes, 1854 (tautonomy) = Polymesoda anomala

Pseudocyrena Bourguignat, 1854

Bourguignat, 1854. Rev. Mag. Zool. 6: 673.
Type species: Cyrena maritima d’Orbigny, 1853 = Polymesoda floridana

Egeta Adams & Adams, 1857

Adams & Adams, 1857. Gen. Rec. Moll. 2(31-32): 651.
(new name for Anomala Deshayes, 1854)
Type species: Cyrena anomala Deshayes, 1854 = Polymesoda anomala

Egetaria Mörch, 1861

Mörch, 1861. Malak. Blatt. 7: 194.
Type species: Polymesoda (Egetaria) pullastra Mörch, 1861 = Polymesoda notabilis

Cyprinella Gabb, 1864

Gabb, 1864. Geol. Surv. Calif., Paleont. 1: 170.
(homonym of Girard, 1856 [Pisces]; renamed Diodus Gabb, 1868)

Diodus Gabb, 1868

Gabb, 1868. Geol. Surv. Calif., Paleont. 2: 242.
(new name for Cyprinella Gabb, 1864)

Leptosiphon Fischer, 1872

Fischer, 1872. Ann. Lyceum New York 10: 195.
Type species: Cyclas caroliniana Bosc, 1801 = Polymesoda caroliniana

Neocyrena Fischer & Crosse, 1894

Fischer & Crosse, 1894. Miss. Sci. Mexique, Rech. Zool. 2(16): 631, 634.
Type species: Cyrena nicaraguana Prime, 1870 (sub. desig. by H.B. Baker, 1930: 60) = Polymesoda solida

Polymeroda Deshayes, 1854

Deshayes, 1854. Cat. Bivalves Brit. Mus. part 1: 241.
(error for Polymesoda Rafinesque, 1820)
Type species: Cyclas caroliniana Bosc, 1801 = Polymesoda caroliniana

Taxonomic History (since 1900)

The Taxonomic History lists the ways authors have classified the species currently assigned to Polymesoda, since 1900.

Polymesoda (s.s.) — Martens (1900), Thiele (1934), Olsson (1961), Keen (1971)
Polymesoda (Egeta) — Martens (1900), Olsson (1961), Keen (1971)
Polymesoda (Cyrenocapsa) — Martens (1900)
Cyrena (s.s. sec. Polymesoda) — Dall (1903)
Cyrena (Pseudocyrena sec. Egetaria) — Dall (1903)
Cyrena (Pseudocyrena) — Dall (1903)
Polymesoda — H.B. Baker (1930), Morrison (1946), Turgeon et al. (1998), Park & Ó Foighil (2000), Siripattrawan et al. (2000), ... Combosch et al. (2017), Kondakov et al. (2020), Ituarte (2020), Czaja et al. (2023), Wu et al. (2023)
Polymesoda (Pseudocyrena) — Thiele (1934), Olsson (1961)
Polymesoda (Egetaria) — Thiele (1934)
Neocyrena — Olsson (1961), OBIS (2012)
Polymesoda (Neocyrena) — Keen (1971)
Cyanocyclas — Simone (2006)
Geloina — OBIS (2012)

 
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