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 | 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! 
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 Bivalvia | Sphaerioida | Sphaerioidea | Sphaeriidae | Sphaeriinae | Euglesa species Euglesa compressa (Prime, 1852): synonymy0 specimens + 2 Genbank vouchers
 | Pisidium altile Prime, 1852‘Anthony’ C.B. Adams, 1847. Cat. Gen. Sp. Adams: 29. [nomen nudum]
 ‘Anthony’ Prime, 1852. Boston J. Nat. Hist. 6(3): 353, pl. 11, figs. 10-12.
 ‘Anthony, in litt.’ Prime, 1865. Smithsonian Misc. Coll. (145): 65 [as ‘Cyclas altilis’]. [nomen nudum]
 
 Pisidium (Cyclocalyx) compressum — Burch (1975)
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 | Pisidium compressum Prime, 1852Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 164.
 Prime, 1852. Ann. Lyc. Natur. Hist. 5: 219, pl. 6.
 Prime, 1852. Boston J. Nat. Hist. 6(3): 356, pl. 11, figs. 13-15.
 
  Prime, 1865. Smithsonian Misc. Coll. (145): 64, figs. 67-68. 
 Pisidium compressum — Martens (1900), Thiele (1934), Herrington (1962), Mackie et al. (1980), Turgeon et al. (1998), ... Bogan (2010), ITIS (2012), Clewing et al. (2013), Ram et al. (2014), Saito et al. (2022)
 Corneocyclas (Cymatocyclas) compressum — Dall (1903)
 Pisidium (Cyclocalyx) compressum — Clarke (1973), Burch (1975), Cooley & Ó Foighil (2000), Bespalaya et al. (2017), Fuentealba-Jara et al. (2017)
 Pisidium (Euglesa) compressum — Korniushin & Glaubrecht (2002)
 Cyclocalyx compressum — Lee & Ó Foighil (2003)
 Euglesa (Cyclocalyx) compressa — Mouthon & Forcellini (2017)
 Euglesa compressum — Vinarski et al. (2020)
 Euglesa compressa — Príe et al. (2021), Czaja et al. (2023), Prié et al. (2023)
 Euglesa (Casertiana) compressa — Bespalaya et al. (2023)
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 | Pisidium peraltum Sterki, 1900Sterki, 1900. Nautilus 14(1): ??.
 
 Pisidium (Cyclocalyx) compressum — Burch (1975)
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 | Pisidium compressum var. arrosum Sterki, 1905Sterki, 1905. Nautilus 19(7): ??.
 
 Pisidium (Cyclocalyx) compressum — Burch (1975)
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 | Pisidium compressum var. conferum Sterki, 1905Sterki, 1905. Nautilus 19(7): ??.
 
 Pisidium (Cyclocalyx) compressum — Burch (1975)
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 | Pisidium compressum var. contrarium Sterki, 1905Sterki, 1905. Nautilus 19(7): ??.
 
 Pisidium (Cyclocalyx) compressum — Burch (1975)
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 | Pisidium compressum var. coosaense Sterki, 1905Sterki, 1905. Nautilus 19(7): ??.
 
 Pisidium (Cyclocalyx) compressum — Burch (1975)
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 | Pisidium compressum var. laevigatum Sterki, 1905Sterki, 1905. Nautilus 19(7): ??.
 
 Pisidium (Cyclocalyx) compressum — Burch (1975)
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 | Pisidium compressum var. limnicolum Sterki, 1905Sterki, 1905. Nautilus 19(7): ??.
 
 Pisidium (Cyclocalyx) compressum — Burch (1975)
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 | Pisidium compressum var. opacum Sterki, 1905Sterki, 1905. Nautilus 19(7): ??.
 
 Pisidium (Cyclocalyx) compressum — Burch (1975)
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 | Pisidium compressum var. rostratum Sterki, 1905Sterki, 1905. Nautilus 19(7): ??.
 
 Pisidium (Cyclocalyx) compressum — Burch (1975)
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 | Pisidium compressum var. smithii Sterki, 1905Sterki, 1905. Nautilus 19(7): ??.
 
 Pisidium (Cyclocalyx) compressum — Burch (1975)
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 | Pisidium fraudulentum Sterki, 1912Sterki, 1912. Nautilus 26(8): 95.
 
 Pisidium (Cyclocalyx) compressum — Burch (1975)
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 | Pisidium compressum var. curvatum Sterki, 1916Sterki, 1916. Ann. Carnegie Mus. 10(3/4): ??.
 
 Pisidium (Cyclocalyx) compressum — Burch (1975)
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 | Pisidium compressum var. illinoisense Sterki, 1916Sterki, 1916. Ann. Carnegie Mus. 10(3/4): ??.
 
 Pisidium (Cyclocalyx) compressum — Burch (1975)
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 | Pisidium compressum var. pellucidum Sterki, 1916Sterki, 1916. Ann. Carnegie Mus. 10(3/4): ??.
 
 Pisidium (Cyclocalyx) compressum — Burch (1975)
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 | Pisidium compressum mutatum Sterki, 1922Sterki, 1922. Ann. Carnegie Mus. 13(3/4): ??.
 
 Pisidium (Cyclocalyx) compressum — Burch (1975)
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 | Pisidium coloradense Sterki, 1923Sterki, 1923. Nautilus 37(1): ??.
 
 Pisidium (Cyclocalyx) compressum — Burch (1975)
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 Taxonomic History (since 1900)Pisidium compressum — Martens (1900), Thiele (1934), Herrington (1962), Mackie et al. (1980), Turgeon et al. (1998), ... Bogan (2010), ITIS (2012), Clewing et al. (2013), Ram et al. (2014), Saito et al. (2022)Corneocyclas (Cymatocyclas) compressum — Dall (1903)
 Pisidium (Cyclocalyx) compressum — Clarke (1973), Burch (1975), Cooley & Ó Foighil (2000), Bespalaya et al. (2017), Fuentealba-Jara et al. (2017)
 Pisidium (Euglesa) compressum — Korniushin & Glaubrecht (2002)
 Cyclocalyx compressum — Lee & Ó Foighil (2003)
 Euglesa (Cyclocalyx) compressa — Mouthon & Forcellini (2017)
 Euglesa compressum — Vinarski et al. (2020)
 Euglesa compressa — Príe et al. (2021), Czaja et al. (2023), Prié et al. (2023)
 Euglesa (Casertiana) compressa — Bespalaya et al. (2023)
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