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Page last updated
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!

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Bivalvia | Unionoida | Unionoidea | Unionidae | Ambleminae | Pleurobemini

genus Hemistena Rafinesque, 1820: synonymy
     1 Recent valid species (1 total species)

Hemistena Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 317.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 60.
(intro'd as sub-gen. of Anodonta Lamarck, 1799)
Type species: Anodonta (Lastena) lata Rafinesque, 1820 (monotypy) = Hemistena lata

Odatelia Rafinesque, 1832
Rafinesque, 1832. Atl. Jour. 1(4): 154.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 92.
Type species: Odatelia radiata Rafinesque, 1832 (monotypy) = Hemistena lata

Sayunio de Gregorio, 1914
de Gregorio, 1914. Il Nat. Siciliano 2: 62.
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio dehiscens Say, 1829 (herein) = Hemistena lata

Hemilastena Agassiz, 1852
‘Rafinesque’ Agassiz, 1852. Arch. Naturg. 18(1): 50.
(error for Hemistena Rafinesque, 1820)

Hemilastina Frierson, 1914
Frierson, 1914. Nautilus 28: 40.
(error for Hemistena Rafinesque, 1820)

Taxonomic History (since 1900)

LastenaSimpson (1900), Ortmann (1912), Simpson (1914), Vanatta (1915), Walker (1918), Ortmann (1918), Ortmann & Walker (1922), Ortmann (1924), Ortmann (1925), Haas (1969), Stansbery (1970)
Unio (Anodonta)Call (1900)
Unio (Sayunio)de Gregorio (1914)
HemistenaFrierson (1927), Thiele (1934), Haas (1969), Burch (1975), R.I. Johnson (1980), ... Klymus et al. (2020), Graf & Cummings (2021), FMCS (2021), Hopper et al. (2023), FMCS (2025)

 
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