Unio jayensis Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 37. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 28, pl. 9, fig. 23.
Type(s): HOLOTYPE USNM_86031, Florida.

Unio (sec. Elliptio) jayensis — Simpson (1900), Simpson (1914)
Elliptio jayensis — Ortmann (1912), Turgeon et al. (1988), Williams et al. (1993), Turgeon et al. (1998), Daget (1998), ... Perkins et al. (2017), Graf & Cummings (2021), FMCS (2021), Hopper et al. (2023), MolluscaBase (2024)
Elliptio (s.s.) jayensis — Frierson (1927), Haas (1969), R.I. Johnson (1972), Burch (1975)

Unio buckleyi Lea, 1843
Lea, 1843. [privately published sheet]: [1].
Lea, 1845. Trans. Amer. Phil. Soc. 9 [O. 4]: 276 [34], pl. 39, fig. 2.
Type(s): FIGURED SYNTYPE USNM_85236, Lake George, Florida.

Unio (sec. Elliptio) buckleyi — Simpson (1900), Simpson (1914)
— de Gregorio (1914)
Elliptio (s.s.) buckleyi — Frierson (1927), Haas (1969), R.I. Johnson (1972)
Popenaias buckleyi — Heard & Guckert (1970), Burch (1975), ITIS (2012)
Elliptio buckleyi — Davis & Fuller (1981), Davis (1984), Turgeon et al. (1988), Williams et al. (1993), Turgeon et al. (1998), ... Bogan (2010), Cummings & Graf (2010), IUCN (2011), ITIS (2012), Inoue et al. (2018)
Elliptio jayensis — Williams et al. (2011), Haag (2012), Williams et al. (2014), Williams et al. (2017), Graf & Cummings (2021)

Unio buddianus Lea, 1843
Lea, 1843. [privately published sheet]: [1].
Lea, 1845. Trans. Amer. Phil. Soc. 9 [O. 4]: 277 [35], pl. 40, fig. 5.
Type(s): FIGURED SYNTYPE USNM_85606, L. George, Florida.

Unio (sec. Elliptio) buckleyi — Simpson (1900), Simpson (1914)
Elliptio (s.s.) buddianus — Frierson (1927), Haas (1969)
Uniomerus tetralasmus — R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Margaron (Unio) bucklyi Lea, 1852
‘Lea’ of Authors.
Lea, 1852. Synopsis Fam. Naiades: 30.
Adams & Adams, 1857. Gen. Rec. Moll. 2(31-32): 493 [as ‘Unio (Hyridella) bucklyi’].
Lea, 1870. Synopsis Fam. Naiades: 48.
(error for Unio buckleyi Lea, 1843)

Unio coruscus Gould, 1856
Gould, 1856. Proc. Boston Soc. Nat. Hist. 6: 15.
Type(s): HOLOTYPE MCZ_169097, St. John’s River, near Lake Beresford, Florida.

Unio (sec. Elliptio) coruscus — Simpson (1900), Simpson (1914)
Elliptio (s.s.) coruscus — Frierson (1927), Haas (1969)
Elliptio (s.s.) icterina — R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio prasinatus Conrad, 1866
Conrad, 1866. Amer. J. Conch. 2: 279, pl. 15, fig. 14.
Type(s): HOLOTYPE ANSP_41347, Florida.

Unio (sec. Elliptio) jayensis — Simpson (1900), Simpson (1914)
Elliptio (s.s.) jayensis — Frierson (1927), Haas (1969)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Margaron (Unio) jayanus Lea, 1870
‘Lea’ of Authors.
Lea, 1870. Synopsis Fam. Naiades: 60.
B.H. Wright, 1888. Check List N. Amer. Unionidae etc.: [3].
(error for Unio jayensis Lea, 1838)

Unio (sec. Elliptio) jayensis — Simpson (1900), Simpson (1914)
Elliptio (s.s.) jayensis — Frierson (1927), Haas (1969)

Unio cunninghami B.H. Wright, 1883
B.H. Wright, 1883. Proc. Acad. Nat. Sci. 35: 58, pl. 1, figs. 1-4.
Type(s): LECTOTYPE ANSP_41348, L. Dora, Sumpter Co., Fla.

Unio (sec. Elliptio) cunninghami — Simpson (1900), Simpson (1914)
Elliptio (s.s.) cunninghami — Frierson (1927), Haas (1969)
Elliptio (s.s.) buckleyi — R.I. Johnson (1972)
Popenaias buckleyi — Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio dallii B.H. Wright, 1888
B.H. Wright, 1888. Proc. Acad. Nat. Sci. 40: 119, pl. 6, fig. 1.
Type(s): HOLOTYPE USNM_151037, Lake Woodruff, Fla.

Unio (sec. Elliptio) buckleyi — Simpson (1900), Simpson (1914)
Elliptio (s.s.) buddianus-dalli — Frierson (1927)
Elliptio (s.s.) buckleyi — Haas (1969), R.I. Johnson (1972)
Popenaias buckleyi — Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio dorei B.H. Wright, 1888
B.H. Wright, 1888. Proc. Acad. Nat. Sci. 40: 115, pl. 3, fig. 1.
Type(s): HOLOTYPE USNM_151034, Lake Monroe, Volusia Co., Fla.

Unio (sec. Elliptio) dorei — Simpson (1900), Simpson (1914)
Elliptio (s.s.) dorei — Frierson (1927), Haas (1969)
Elliptio (s.s.) buckleyi — R.I. Johnson (1972)
Popenaias buckleyi — Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio hinkleyi B.H. Wright, 1888
B.H. Wright, 1888. Proc. Acad. Nat. Sci. 40: 117, pl. 4, fig. 3.
Type(s): HOLOTYPE USNM_151033, Lake Monroe, Volusia Co., Fla.

Unio (sec. Elliptio) hinkleyi — Simpson (1900), Simpson (1914)
Elliptio (s.s.) hinkleyi — Frierson (1927), Haas (1969)
Elliptio (s.s.) buckleyi — R.I. Johnson (1972)
Popenaias buckleyi — Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio marshii B.H. Wright, 1888
B.H. Wright, 1888. Proc. Acad. Nat. Sci. 40: 118, pl. 5, fig. 2.
Type(s): HOLOTYPE USNM_151028, Lake Woodruff, Fla.

Unio (sec. Elliptio) jayensis — Simpson (1900), Simpson (1914)
Elliptio (s.s.) marshii — Frierson (1927)
Elliptio (s.s.) jayensis — Haas (1969), R.I. Johnson (1972), Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio nolani B.H. Wright, 1888
B.H. Wright, 1888. Proc. Acad. Nat. Sci. 40: 116, pl. 4, fig. 1.
Type(s): HOLOTYPE USNM_151030, St. Johns Riv., Fla.

Unio (sec. Elliptio) obnubilus — Simpson (1900), Simpson (1914)
Elliptio (s.s.) nolani — Frierson (1927), Haas (1969)
Elliptio (s.s.) icterina — R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio orcuttii S.H. Wright, 1888
S.H. Wright, 1888. West Amer. Scientist 4: 60, fig. 3.
Type(s): HOLOTYPE USNM_308971, Horse Cr., near Manatee R., Manatee Co., Fla.

Unio (sec. Elliptio) buckleyi var. orcuttii — Simpson (1900), Simpson (1914)
Elliptio (s.s.) buddianus-orcuttii — Frierson (1927)
Elliptio (s.s.) buckleyi — Haas (1969), R.I. Johnson (1972)
Popenaias buckleyi — Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio simpsoni B.H. Wright, 1888
B.H. Wright, 1888. Proc. Acad. Nat. Sci. 40: 117, pl. 5, fig. 1.
B.H. Wright, 1888. Check List N. Amer. Unionidae etc.: [5] [as ‘simpsonii’].
Type(s): HOLOTYPE USNM_151038, Lake Woodruff, Fla.

Unio (sec. Elliptio) jayensis — Simpson (1900), Simpson (1914)
Elliptio (s.s.) jayensis — Frierson (1927), Haas (1969)
Elliptio (s.s.) icterina — R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio tryoni B.H. Wright, 1888
B.H. Wright, 1888. Proc. Acad. Nat. Sci. 40: 120, pl. 6, fig. 2.
Type(s): HOLOTYPE USNM_151036, Lake Woodruff, Fla.

Unio (sec. Elliptio) jayensis — Simpson (1900), Simpson (1914)
Elliptio (s.s.) jayensis-tryoni — Frierson (1927)
Elliptio (s.s.) jayensis — Haas (1969), R.I. Johnson (1972), Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio ferrissii Marsh, 1891
Marsh, 1891. Nautilus 5(3): 30.
Simpson, 1892. Proc. U.S. Nat. Mus. 15(911): 423, pl. 66, figs. 1-2.

Unio (sec. Elliptio) ferrissii — Simpson (1900), Simpson (1914)
Elliptio (s.s.) ferrissii — Frierson (1927)
Elliptio (s.s.) ferrissi — Haas (1969)
Elliptio (s.s.) buckleyi — R.I. Johnson (1972)
Popenaias buckleyi — Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio leonensis Simpson, 1892
‘Wright’ Simpson, 1892. Proc. U.S. Nat. Mus. 15(911): 419, pl. 62, figs. 3-4.
Type(s): HOLOTYPE USNM_91141, Lake Woodruff, near DeLeon, Fla.

Unio (sec. Elliptio) jayensis — Simpson (1914)
Elliptio (s.s.) jayensis — Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio oscari B.H. Wright, 1892
B.H. Wright, 1892. Nautilus 5(11): 124.
Type(s): LECTOTYPE USNM_123526 (by R.I. Johnson, 1967: 8), Lake Osceola, a creek from Winter Park, Florida.

Unio (sec. Elliptio) oscari — Simpson (1900), Simpson (1914)
Elliptio (s.s.) aheneus-oscari — Frierson (1927)
Elliptio (s.s.) aheneus — Haas (1969)
Elliptio (s.s.) jayensis — R.I. Johnson (1972), Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio subluridus Simpson, 1892
Simpson, 1892. Proc. U.S. Nat. Mus. 15(911): 432, pl. 83, figs. 3-4.
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 743.
Type(s): HOLOTYPE USNM_104002, Orange Springs, Volusia Co., Florida.

Unio (sec. Uniomerus) subluridus — Simpson (1900)
Unio (sec. Elliptio) subluridus — Simpson (1914)
Elliptio (s.s.) subluridus — Frierson (1927), Haas (1969)
Elliptio (s.s.) buckleyi — R.I. Johnson (1972)
Popenaias buckleyi — Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio buxtoni B.H. Wright, 1897
B.H. Wright, 1897. Nautilus 11: 55.
Type(s): LECTOTYPE USNM_150131, Lakes of Marion Co., Fla.

Unio (sec. Elliptio) buxtoni — Simpson (1900), Simpson (1914)
Unio buxtoni — Simpson (1900)
Elliptio (s.s.) buxtoni — Frierson (1927), Haas (1969)
Elliptio (s.s.) jayensis — R.I. Johnson (1972), Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio diazensis S.H. Wright, 1897
B.H. Wright, 1888. Check List N. Amer. Unionidae etc.: [2] [as ‘diasensis’]. [nomen nudum]
S.H. Wright, 1897. Nautilus 11: 5.
Type(s): LECTOTYPE USNM_149652, Lake Diaz, Volusia Co., Florida.

Unio (sec. Elliptio) coruscus var. fryanus — Simpson (1900)
Unio (sec. Elliptio) coruscus var. diazensis — Simpson (1914)
Elliptio (s.s.) coruscus-fryanus — Frierson (1927)
Elliptio (s.s.) coruscus — Haas (1969)
Elliptio (s.s.) icterina — R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio pinei B.H. Wright, 1897
B.H. Wright, 1897. Nautilus 11: 40.
Type(s): HOLOTYPE USNM_150127, Hernando Cr., Fla. [not the published type locality].

Unio (sec. Elliptio) pinei — Simpson (1900), Simpson (1914)
Unio pinei — Simpson (1900)
Elliptio (s.s.) buddianus-pinei — Frierson (1927)
Elliptio (s.s.) buckleyi — Haas (1969), R.I. Johnson (1972)
Popenaias buckleyi — Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio suttoni B.H. Wright, 1897
B.H. Wright, 1897. Nautilus 11: 56.
Type(s): HOLOTYPE USNM_150129, Lakes of Marion Co., Fla.

— Simpson (1900)
Unio (sec. Elliptio) pinei — Simpson (1914)
Elliptio (s.s.) suttoni — Frierson (1927)
Elliptio (s.s.) buckleyi — Haas (1969)
Elliptio (s.s.) jayensis — R.I. Johnson (1972), Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio caloosaensis Dall, 1898
Dall, 1898. Trans. Wagner Free Inst. 3(4): 688, pl. 25, figs. 5, 12 b.

Unio caloosaensis — Henderson (1935)
Elliptio (s.s.) buckleyi — R.I. Johnson (1972)
Popenaias buckleyi — Burch (1975)

Unio tenuisculus Frierson, 1911
Frierson, 1911. Nautilus 25(3-4): 29, pl. 1, figs. 4-6.
Type(s): LECTOTYPE UMMZ_96312 (by R.I. Johnson, 1972: 150), Reedy Lake, Polk Co., Florida.

Unio (sec. Elliptio) tenuisculus — Simpson (1914)
Elliptio (s.s.) tenuisculus — Frierson (1927), Haas (1969)
Elliptio (s.s.) buckleyi — R.I. Johnson (1972)
Popenaias buckleyi — Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio (Elliptio) sanctorumjohanium B.H. Wright, 1933
B.H. Wright, 1933. Nautilus 47(1): 17, pl. 1.
Type(s): HOLOTYPE USNM_424738, L. Druid, Floral City, Citrus Co., Florida.

Elliptio (s.s.) buckleyi — R.I. Johnson (1972)
Popenaias buckleyi — Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Elliptio maywebbae B.H. Wright, 1934
B.H. Wright, 1934. Nautilus 47: 28.
B.H. Wright, 1934. Nautilus 47: pl. 13, fig. 6.
Type(s): HOLOTYPE USNM_425354, Seminole Springs, Florida.

— Frierson (1927)
Elliptio (s.s.) maywebbae — Haas (1969)
Elliptio (s.s.) icterina — R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio (Elliptio) webbianus B.H. Wright, 1934
B.H. Wright, 1934. Nautilus 47: 94, pl. 10, figs. 1-2.
Type(s): HOLOTYPE USNM_424923, L. Consuelo, Citrus Co., Florida.

Elliptio (s.s.) buckleyi — R.I. Johnson (1972)
Popenaias buckleyi — Burch (1975)
Elliptio jayensis — Williams et al. (2011), Williams et al. (2014)

Unio (Elliptio) webbianus hartii B.H. Wright, 1934
B.H. Wright, 1934. Nautilus 47: 95, pl. 10, figs. 3-4.
(intro'd as intra-sp. of Unio (Elliptio) webbianus B.H. Wright, 1934)
Type(s): HOLOTYPE USNM_424925, L. Consuelo, Citrus Co., Florida.

Elliptio (s.s.) buckleyi — R.I. Johnson (1972)
Popenaias buckleyi — Burch (1975)
Elliptio jayensis — Williams et al. (2011)

Unio bucklei Küster, 1861
‘Lea’ Küster, 1861. Conchyl. Cab. 9(2): 177.
(error for Unio buckleyi Lea, 1843)

Unio diasensis B.H. Wright, 1888
‘Wright’ B.H. Wright, 1888. Check List N. Amer. Unionidae etc.: [2]. [nomen nudum]
(error for Unio diazensis S.H. Wright, 1897)

Unio buckey de Gregorio, 1914
‘Lea’ de Gregorio, 1914. Il Nat. Siciliano 2: 54.
(error for Unio buckleyi Lea, 1843)

Unio (Elliptio) sanctrumjohanium R.I. Johnson, 1972
‘B.H. Wright’ R.I. Johnson, 1972. Bull. Fla. State Mus. 16(4): 212.
(error for Unio (Elliptio) sanctorumjohanium B.H. Wright, 1933)