MUSSELpdb
Taxonomy
Species & Genus Richness of
freshwater mussels
by Taxonomy
Species & Genus Richness of
freshwater bivalves
by Family
Geography
Species Richness & Endemism of
freshwater mussels
by Geography
Data last updated
Mon 2 March 2026
Bivalvia | ... | Unionoidea | Unionidae | Unioninae | Anodontini | Alasmidontina | Pseudodontoideus
species Pseudodontoideus subvexus (Conrad, 1834): synonymy
2 specimens + 1 GenBank voucher
Synonymy
Anodonta subvexa Conrad, 1834
Conrad, 1834. Amer. J. Sci. 25(2): 341, pl. 1, fig. 1.
Conrad, 1834. New Fresh-Water Shells: 73.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 264.
Lampsilis (s.s.) subvexa — Simpson (1900)
Strophitus (s.s.) subvexus — Simpson (1914), Frierson (1927), Haas (1969)
Strophitus subvexus — R.I. Johnson (1967), Turgeon et al. (1988), Williams et al. (1993), Vidrine (1993), IUCN (1996), ... Haag (2012), Inoue et al. (2014), Williams et al. (2017), Inoue et al. (2018), Hauck et al. (2023)
Strophitus subvexa — Burch (1975)
Pseudodontoideus subvexus — Smith et al. (2018), Graf & Cummings (2021), Bieler (2021), FMCS (2021), Whelan et al. (2023), Hopper et al. (2023), Perkins et al. (2025), FMCS (2025), Campbell & Lydeard (2026)
Margaritana gesnerii Lea, 1858
Lea, 1858. Proc. Acad. Nat. Sci. 10: 138.
Lea, 1862. Jour. Acad. Nat. Sci. 5 [O. 9]: 211 [33], pl. 32, fig. 280.
Strophitus gesnerii — Simpson (1900)
Strophitus (s.s.) gesnerii — Simpson (1914), Haas (1969)
Strophitus conasaugaensis — Ortmann (1923)
Strophitus (Pseudodontoideus) gesneri — Frierson (1927)
Strophitus subvexus — R.I. Johnson (1967), Brim Box & Williams (2000)
Strophitus subvexa — Burch (1975)
Strophitus connasaugaensis — Williams et al. (2008)
Margaritana spillmanii Lea, 1858
Lea, 1858. Proc. Acad. Nat. Sci. 10: 138.
Lea, 1862. Jour. Acad. Nat. Sci. 5 [O. 8]: 105 [109], pl. 17, fig. 252.
Type(s): HOLOTYPE USNM_86278, Magbys Cr., near Columbus, Miss.
Strophitus spillmanii — Simpson (1900)
Strophitus (s.s.) spillmanii — Simpson (1914), Haas (1969)
Strophitus spillmani — Ortmann (1923)
Strophitus (Pseudodontoideus) spillmani — Frierson (1927)
Strophitus subvexus — R.I. Johnson (1967), Brim Box & Williams (2000), Williams et al. (2008)
Strophitus subvexa — Burch (1975)
Margaritana tombecbeensis Lea, 1858
Lea, 1858. Proc. Acad. Nat. Sci. 10: 138.
Strophitus subvexus — R.I. Johnson (1967), Brim Box & Williams (2000), Williams et al. (2008)
Strophitus subvexa — Burch (1975)
Pseudodontoideus subvexus — Bieler (2021)
Margaritana tombigbeensis Lea, 1862
Lea, 1858. Proc. Acad. Nat. Sci. 10: 138 [as ‘tombecbeensis’].
Lea, 1862. Jour. Acad. Nat. Sci. 5 [O. 8]: 107, pl. 18, fig. 255 [as ‘tombigbéensis’].
(error for Margaritana tombecbeensis Lea, 1858)
Type(s): HOLOTYPE USNM_86253, Tombigbee R., near Columbus, Miss.
Strophitus tombigbeensis — Simpson (1900), Ortmann (1923)
Strophitus (s.s.) tombigbeensis — Simpson (1914)
Strophitus (s.s.) subvexus — Frierson (1927), Haas (1969)
Strophitus subvexus — R.I. Johnson (1967), Brim Box & Williams (2000), Williams et al. (2008)
Strophitus subvexa — Burch (1975)
Pseudodontoideus subvexus — Bieler (2021)
Margaritana columbensis Lea, 1867
Lea, 1867. Proc. Acad. Nat. Sci. 19: 81.
Alasmidonta columbensis — Simpson (1900)
Strophitus (s.s.) tombigbeensis — Simpson (1914)
Strophitus (s.s.) subvexus — Frierson (1927), Haas (1969)
Strophitus subvexus — R.I. Johnson (1967), Brim Box & Williams (2000), Williams et al. (2008)
Strophitus subvexa — Burch (1975)
Unio spillmannii Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 82, pl. 435.
(error for Margaritana spillmanii Lea, 1858)
Strophitus spillmanii — Simpson (1900)
Margaritana gessneri Paetel, 1890
‘Lea’ Paetel, 1890. Cat. Conch.-Samml. 3: 173.
(error for Margaritana gesnerii Lea, 1858)
Strophitus gesnerii — Simpson (1900)
Strophitus (s.s.) gesnerii — Simpson (1914)
Taxonomic History (since 1900)
Lampsilis (s.s.) subvexa — Simpson (1900)
Strophitus gesnerii — Simpson (1900)
Strophitus spillmanii — Simpson (1900)
Strophitus tombigbeensis — Simpson (1900), Ortmann (1923)
Alasmidonta columbensis — Simpson (1900)
Strophitus (s.s.) subvexus — Simpson (1914), Frierson (1927), Haas (1969)
Strophitus (s.s.) gesnerii — Simpson (1914), Haas (1969)
Strophitus (s.s.) spillmanii — Simpson (1914), Haas (1969)
Strophitus (s.s.) tombigbeensis — Simpson (1914)
Strophitus conasaugaensis — Ortmann (1923)
Strophitus spillmani — Ortmann (1923)
Strophitus (Pseudodontoideus) gesneri — Frierson (1927)
Strophitus (Pseudodontoideus) spillmani — Frierson (1927)
Strophitus subvexus — R.I. Johnson (1967), Turgeon et al. (1988), Williams et al. (1993), Vidrine (1993), IUCN (1996), ... Haag (2012), Inoue et al. (2014), Williams et al. (2017), Inoue et al. (2018), Hauck et al. (2023)
Strophitus subvexa — Burch (1975)
Strophitus connasaugaensis — Williams et al. (2008)
Pseudodontoideus subvexus — Smith et al. (2018), Graf & Cummings (2021), Bieler (2021), FMCS (2021), Whelan et al. (2023), Hopper et al. (2023), Perkins et al. (2025), FMCS (2025), Campbell & Lydeard (2026)
