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Page last updated
Wed 1 October 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!

Search the database pages:

Bivalvia | Unionoida | Unionoidea | Unionidae | Ambleminae | Lampsilini | Obovaria

species Obovaria arkansasensis (Lea, 1862): synonymy
     3 specimens + 100 Genbank vouchers

Unio castaneus Lea, 1831
Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 91 [101], pl. 11, fig. 21.
Type(s): HOLOTYPE USNM_84824, Claiborne, Alabama.

Obovaria (Pseudoon) castaneaSimpson (1900), Simpson (1914), Frierson (1927), Haas (1969)
Obovaria (Pseudoon) castaneusOrtmann (1912)
de Gregorio (1914)
Obovaria jacksonianaR.I. Johnson (1980), Oesch (1984), Vidrine (1993), Howells et al. (1996), Parmalee & Bogan (1998), Williams et al. (2008), Campbell & Lydeard (2012)

Unio arkansasensis Lea, 1862
Lea, 1862. Proc. Acad. Nat. Sci. 14: 169.
Lea, 1862. Jour. Acad. Nat. Sci. 5 [O. 9]: 206 [28], pl. 30, fig. 275.
Type(s): HOLOTYPE USNM_25710, Hot Springs, Arkansas.

Lampsilis (sec. Eurynia) arkansasensisSimpson (1900)
Lampsilis (Eurynia) arkansasensisSimpson (1914)
Eurynia (Micromya) arkansasensisOrtmann (1916)
Lampsilis (Venusta) arkansensis [sic]Frierson (1927)
Lampsilis (Venustaconcha) arkansasensisHaas (1969)
Villosa arkansasensisGordon et al. (1979), R.I. Johnson (1980), Turgeon et al. (1988), Williams et al. (1993), Turgeon et al. (1998), Graf & Cummings (2007), Bogan (2010), Cummings & Graf (2010), ITIS (2012), Haag (2012), Wu et al. (2018)
Obovaria arkansasensisInoue et al. (2013), Williams et al. (2017), Watters (2018), Marshall et al. (2018), Graf & Cummings (2021), FMCS (2021), Hopper et al. (2023), FMCS (2025)

Unio (Obovaria) jacksoniana Frierson, 1912
Frierson, 1912. Nautilus 26(2): 23, pl. 3, figs. 1-3.
Frierson, 1927. Check List N. Amer. Naiades: 91, sp. 412.
Type(s): LECTOTYPE ANSP_106063, Pearl R., Miss.

Obovaria (Pseudoon) jacksonianaSimpson (1914), Frierson (1927), Haas (1969)
Obovaria jacksonianaBurch (1975), R.I. Johnson (1980), Oesch (1984), Turgeon et al. (1988), Williams et al. (1993), ... McMurray et al. (2012), Campbell & Lydeard (2012), Watters (2018), Porto-Hannes et al. (2019), Hauck et al. (2023)
Obovaria arkansasensisInoue et al. (2013), Williams et al. (2017), Graf & Cummings (2021)

Lampsilis arkansensis Frierson, 1927
‘Lea’ Frierson, 1927. Check List N. Amer. Naiades: 81, sp. 355.

Lampsilis (Venustaconcha) arkansasensisHaas (1969)

Taxonomic History (since 1900)

Obovaria (Pseudoon) castaneaSimpson (1900), Simpson (1914), Frierson (1927), Haas (1969)
Lampsilis (sec. Eurynia) arkansasensisSimpson (1900)
Obovaria (Pseudoon) castaneusOrtmann (1912)
de Gregorio (1914)
Lampsilis (Eurynia) arkansasensisSimpson (1914)
Obovaria (Pseudoon) jacksonianaSimpson (1914), Frierson (1927), Haas (1969)
Eurynia (Micromya) arkansasensisOrtmann (1916)
Lampsilis (Venusta) arkansensis [sic]Frierson (1927)
Lampsilis (Venustaconcha) arkansasensisHaas (1969)
Obovaria jacksonianaBurch (1975), R.I. Johnson (1980), Oesch (1984), Turgeon et al. (1988), Vidrine (1993), ... Haag (2012), McMurray et al. (2012), Watters (2018), Porto-Hannes et al. (2019), Hauck et al. (2023)
Villosa arkansasensisGordon et al. (1979), R.I. Johnson (1980), Turgeon et al. (1988), Williams et al. (1993), Turgeon et al. (1998), Graf & Cummings (2007), Bogan (2010), Cummings & Graf (2010), ITIS (2012), Haag (2012), Wu et al. (2018)
Obovaria arkansasensisInoue et al. (2013), Williams et al. (2017), Watters (2018), Marshall et al. (2018), Graf & Cummings (2021), FMCS (2021), Hopper et al. (2023), FMCS (2025)

 
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