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Thu 3 September 2025

The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)

FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the custom Google search field. Either way, you win!

Bivalvia | Sphaerioida | Sphaerioidea | Sphaeriidae | Sphaeriinae | Euglesa

species Euglesa obtusalis (Lamarck, 1818): specimens
     14 available nominal species synonyms (17 total synonyms)

Recent Taxonomic Opinions

Pisidium obtusale — Taylor et al. (2007), Schultheiß et al. (2008), Bogan (2010), IUCN (2011), Fauna Europaea (2012), ... Múrria et al. (2020), Groh et al. (2020), Clewing et al. (2020), Saito et al. (2022), Clewing et al. (2022)
Cyclocalyx obtusalis — Kantor et al. (2010)
Cyclocalyx dubrueili — Kantor et al. (2010)
Cyclocalyx scholtzii — Kantor et al. (2010)
Cyclocalyx magnificus — Kantor et al. (2010)
Cyclocalyx solidus — Kantor et al. (2010)
Cyclocalyx fragilis — Kantor et al. (2010)
Cyclocalyx lapponicus — Kantor et al. (2010)
Cyclocalyx cor — Kantor et al. (2010)
Cyclocalyx chaunensis — Kantor et al. (2010)
Cyclocalyx ovatus — Kantor et al. (2010)
Cyclocalyx angarensis — Kantor et al. (2010)
Euglesa (Cyclocalyx) obtusale — Vinarski & Kantor (2016)
Euglesa (Cyclocalyx) dubrueili — Vinarski & Kantor (2016)
Euglesa (Cyclocalyx) scholtzii — Vinarski & Kantor (2016)
Euglesa (Cyclocalyx) magnifica — Vinarski & Kantor (2016)
Euglesa (Cyclocalyx) solida — Vinarski & Kantor (2016)
Euglesa (Cyclocalyx) fragilis — Vinarski & Kantor (2016)
Euglesa (Cyclocalyx) lapponica — Vinarski & Kantor (2016)
Euglesa (Cyclocalyx) cor — Vinarski & Kantor (2016)
Euglesa (Cyclocalyx) chaunensis — Vinarski & Kantor (2016)
Euglesa (Cyclocalyx) ovata — Vinarski & Kantor (2016)
Euglesa (Cyclocalyx) angarensis — Vinarski & Kantor (2016)
Pisidium (Cyclocalyx) obtusale — Voode (2017), Bespalaya et al. (2017)
Euglesa obtusalis — Príe et al. (2021), Bespalaya et al. (2022), Prié et al. (2023)
Euglesa obtusale — Bespalaya et al. (2021)
Euglesa (s.s.) obtusalis — Bespalaya et al. (2023)

Range

Widespread, from Europe to Kamchatka.

Map of Georeferenced Specimens

Switzerland

INHS_59887. marsh, near Geneva, Geneva, Switzerland

INHS_59888. marsh, near Geneva, Geneva, Switzerland

Georeferenced Genbank Vouchers

Germany

Mp_4346_6026. (16S: EU559136, go to Genbank) Germany, Craula (51.08027, 10.485).

Mp_4346_6028. (16S: EU559138, go to Genbank) ditto.

UGSB_10565 (DE05/1). (16S: EU559137, 28S: KF483335, COI: KF483387, go to Genbank) ditto.

Iceland

RMBH_IEPN_914. (16S: KY126451, go to Genbank) Iceland: Hverfjall.

RMBH_IEPN_918. (16S: ON563701, go to Genbank) ditto.

Russia

RMBH_MSph_346. (16S: ON563540, 28S: ON783918, go to Genbank) Russia: Nenets Autonomous Area, Kolguyev Island.

RMBH_MSph_534. (16S: ON563589, go to Genbank) Russia: Nenets Autonomous Area, Nes village, Danchukovo lake.

RMBH_MSph_452. (16S: ON563556, go to Genbank) Russia: Nenets Autonomous Area, Shoyna.

RMBH_MSph_781. (16S: ON563644, go to Genbank) Russia: Yakutia, Srednekolymsk, lake next to the oil depot.

RMBH_MSph_789. (16S: ON563655, 28S: ON783964, go to Genbank) ditto.

Sweden

GNM-MOLOV000009542. (COI: PP204122, go to Genbank) Sweden (58.567639 N 13.739972 E).

GNM-MOLOV000009543. (COI: PP204123, go to Genbank) ditto.

GNM-MOLOV000009547. (COI: PP204127, go to Genbank) ditto.

GNM-MOLOV000009548. (COI: PP204128, go to Genbank) ditto.

GNM-MOLOV000009549. (COI: PP204129, go to Genbank) ditto.

GNM-MOLOV000009545. (COI: PP204125, go to Genbank) Sweden (66.553556 N 19.765667 E).

GNM-MOLOV000009544. (COI: PP204124, go to Genbank) Sweden (67.08475 N 20.345 E).

GNM-MOLOV000009546. (COI: PP204126, go to Genbank) ditto.