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 29 June 2026
Bivalvia | Unionida | Unionoidea | Unionidae | Ambleminae | Pleurobemini | Elliptio
species Elliptio producta (Conrad, 1836): synonymy
Synonymy
Unio productus Conrad, 1836
Conrad, 1836. Monogr. Fam. Unionidae 1(3): 31, pl. 14, fig. 1.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 255.
Type(s): HOLOTYPE ANSP_41397, [no locality available - North America].
Unio (sec. Elliptio) productus — Simpson (1900), Simpson (1914)
Unio productus — Ortmann (1910)
Elliptio productus — Ortmann (1911), Ortmann (1912), Ortmann & Walker (1922)
Elliptio (s.s.) productus — Frierson (1927), Haas (1969)
Elliptio (s.s.) lanceolata — R.I. Johnson (1970), Burch (1975)
Elliptio producta — Davis (1984), Turgeon et al. (1988), Williams et al. (1993), Turgeon et al. (1998), Bogan (2002), ... FMCS (2021), Hopper et al. (2023), MolluscaBase (2024), FMCS (2025), Campbell & Lydeard (2026)
Unio barrotti Küster, 1861
‘Lea’ Küster, 1861. Conchyl. Cab. 9(2): 189, pl. 59, fig. 6.
Unio (sec. Elliptio) productus — Simpson (1900), Simpson (1914)
Elliptio (s.s.) productus — Frierson (1927), Haas (1969)
Unio nasutus Conrad, 1838
(misidentified reference to Unio nasutus Say, 1817)
‘Say’ Conrad, 1838. Monogr. Fam. Unionidae 2(11): 38, pl. 18, fig. 1 [upper]. [in part]
Conrad, 1838. Monogr. Fam. Unionidae 2(11): back cover correginda [as ‘U. fisherianus Lea’].
Unio (sec. Elliptio) fisherianus — Simpson (1900), Simpson (1914)
Elliptio (s.s.) productus — Frierson (1927), Haas (1969)
Unio nasululus Simpson, 1914
(error for Unio nasutulus Lea, 1866)
Simpson, 1914. Descr. Cat. Naiades: 691.
Elliptio producta — Bieler (2021)
Taxonomic History (since 1900)
Unio (sec. Elliptio) productus — Simpson (1900), Simpson (1914)
Unio (sec. Elliptio) fisherianus — Simpson (1900), Simpson (1914)
Unio productus — Ortmann (1910)
Elliptio productus — Ortmann (1911), Ortmann (1912), Ortmann & Walker (1922)
Elliptio (s.s.) productus — Frierson (1927), Haas (1969)
Elliptio (s.s.) lanceolata — R.I. Johnson (1970), Burch (1975)
Elliptio producta — Davis (1984), Turgeon et al. (1988), Williams et al. (1993), Turgeon et al. (1998), Bogan (2002), ... FMCS (2021), Hopper et al. (2023), MolluscaBase (2024), FMCS (2025), Campbell & Lydeard (2026)
