species Theliderma cylindrica (Say, 1817): synonymy

Synonymy

Unio cylindricus Say, 1817

Say, 1817. Nich. Encyc. 2: [13,] pl. 4, fig. 3.
Say, 1819. Nich. Encyc. 4: [18,] pl. 4, fig. 3.
Say, 1858. [in] Binney, Compl. Writings T. Say: 52.
NEOTYPE SMF_4310 (by Haas, 1930: 327), N. Amerika [Wabash River].

Quadrula (s.s.) cylindrica — Simpson (1900)
Unio (s.s.) cylindricus — Call (1900)
Quadrula cylindrica — Ortmann (1909), Ortmann (1909), Ortmann (1910), Ortmann (1910), Ortmann (1912), ... Williams et al. (2008), Bogan (2010), Haag (2012), IUCN (2012), Klymus et al. (2020)
Quadrula (s.s.) (Group of Q. metanevra) cylindrica — Simpson (1914)
Unio cilindricus [sic] — de Gregorio (1914)
Quadrula (Orthonymus) cylindrica — Frierson (1927), Haas (1930), Haas (1969)
Orthonymus cylindricus — Morrison (1966), Haas (1969)
Quadrula cylindricus — Stansbery (1970), Strayer & Jirka (1997)
Quadrula cylindrica cylindrica — Oesch (1984), Turgeon et al. (1988), Williams et al. (1993), Turgeon et al. (1998), Lydeard et al. (1999), Serb et al. (2003), Watters et al. (2009), ITIS (2012), Szumowski et al. (2012), McMurray et al. (2012)
Theliderma cylindrica — Graf & Cummings (2007), Cummings & Graf (2010), Williams et al. (2017), Lopes-Lima et al. (2019), Graf & Cummings (2021), FMCS (2021), Neemuchwala et al. (2023), Hopper et al. (2023), FMCS (2025), Nagel (2025), Campbell & Lydeard (2026)

Unio naviformis Lamarck, 1819

Lamarck, 1819. Hist. Natur. Anim. sans Vert. 6: 75, sp. 20.
HOLOTYPE MNHN_MPL_0020, Habite la rivière de l’Ohio. Michaud fils.

Quadrula (s.s.) cylindrica — Simpson (1900)
Quadrula (s.s.) (Group of Q. metanevra) cylindrica — Simpson (1914)
Quadrula cylindrica — Utterback (1915), R.I. Johnson (1953), R.I. Johnson (1969), Oesch (1984), Parmalee & Bogan (1998), Williams et al. (2008)
Quadrula (Orthonymus) cylindrica — Frierson (1927)
Orthonymus cylindricus — Haas (1969)
Quadrula cylindrica cylindrica — Watters et al. (2009)
Theliderma cylindrica — Lopes-Lima et al. (2019)

Unio (Eurynia) solenoides Rafinesque, 1820

Rafinesque, 1819. Jour. Phys. Chim. Hist. Nat. 88: 426 [as ‘solenoïdes’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 298 [also as ‘Elliptio solenoides’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 29, 43.
LECTOTYPE ANSP_20204, Ohio River.

Quadrula cylindrica — Vanatta (1915)
Quadrula (Orthonymus) cylindrica — Frierson (1927)
Orthonymus cylindricus — Haas (1969)
Quadrula cylindrica cylindrica — Watters et al. (2009)
Theliderma cylindrica — Lopes-Lima et al. (2019)

Unio (Eurynia) solenoides var. nodosa Rafinesque, 1820

(intro'd as intra-sp. of Unio (Eurynia) solenoides Rafinesque, 1820)
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus nodosus’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 298.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 23, 43.

Orthonymus cylindricus — Haas (1969)

Unio (Eurynia) solenoides var. cylindrica Rafinesque, 1820

(reference to Unio cylindricus Say, 1817)
‘Say’ Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 298.
‘Say’ Rafinesque, 1864. [in] Binney & Tryon, reprint: 43.

Quadrula (s.s.) cylindrica — Simpson (1900)
Quadrula (s.s.) (Group of Q. metanevra) cylindrica — Simpson (1914)
Orthonymus cylindricus — Haas (1969)

Unio (Eurynia) solenoides var. interrupta Rafinesque, 1820

(intro'd as intra-sp. of Unio (Eurynia) solenoides Rafinesque, 1820)
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 298.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 43.

Orthonymus cylindricus — Haas (1969)

Unio rugosus Chenu, 1862

(misidentified reference to Unio rugosus Barnes, 1823)
‘Barnes’ Chenu, 1862. Manuel Conchyl. 2: 138, text fig.

Quadrula (s.s.) cylindrica — Simpson (1900)
Quadrula (s.s.) (Group of Q. metanevra) cylindrica — Simpson (1914)
Quadrula (Orthonymus) cylindrica — Frierson (1927)
Orthonymus cylindricus — Haas (1969)
Quadrula cylindrica — Parmalee & Bogan (1998)
Quadrula cylindrica cylindrica — Watters et al. (2009)
Theliderma cylindrica — Lopes-Lima et al. (2019)

Unio cylindricus var. strigillatus B.H. Wright, 1898

(intro'd as intra-sp. of Unio cylindricus Say, 1817)
B.H. Wright, 1898. Nautilus 12: 6.
LECTOTYPE USNM_151737, Powell R., Jonesville, Lee Co., Va.

Quadrula (s.s.) (Group of Q. metanevra) cylindrica — Simpson (1914)
Quadrula cylindrica strigillata — Ortmann (1918), Ortmann (1924), Turgeon et al. (1988), Williams et al. (1993), Turgeon et al. (1998), IUCN (2000), Serb et al. (2003), ITIS (2012), Szumowski et al. (2012), Jones (2015)
Quadrula (Orthonymus) cylindrica-strigillata — Frierson (1927)
Orthonymus cylindricus — Haas (1969)
Quadrula cylindricus — Stansbery (1970)
Quadrula cylindrica — R.I. Johnson (1980), Parmalee & Bogan (1998), Williams et al. (2008)
Theliderma cylindrica — Williams et al. (2017), Lopes-Lima et al. (2019)

Unio cilindricus [sic] var. propetipicus de Gregorio, 1914

(intro'd as intra-sp. of Unio cylindricus Say, 1817)
de Gregorio, 1914. Il Nat. Siciliano 2: 41, pl. 4, figs. 1a-b.

Unio cilindricus [sic] var. propetipicus — de Gregorio (1914)
Quadrula cylindrica cylindrica — Watters et al. (2009)
Theliderma cylindrica — Lopes-Lima et al. (2019)

Unio cilindricus [sic] var. acrispatus de Gregorio, 1914

(intro'd as intra-sp. of Unio cylindricus Say, 1817)
de Gregorio, 1914. Il Nat. Siciliano 2: 41, pl. 4, figs. 2a-b.

Unio cilindricus [sic] var. acrispatus — de Gregorio (1914)
Quadrula cylindrica cylindrica — Watters et al. (2009)
Theliderma cylindrica — Lopes-Lima et al. (2019)

Unio cilindricus de Gregorio, 1914

(error for Unio cylindricus Say, 1817)
‘Barn. Say’ de Gregorio, 1914. Il Nat. Siciliano 2: 41.

Quadrula cylindrica cylindrica — Watters et al. (2009)

Taxonomic History (since 1900)

Quadrula (s.s.) cylindrica — Simpson (1900)
Unio (s.s.) cylindricus — Call (1900)
Quadrula cylindrica — Ortmann (1909), Ortmann (1909), Ortmann (1910), Ortmann (1910), Ortmann (1912), ... Williams et al. (2008), Bogan (2010), Haag (2012), IUCN (2012), Klymus et al. (2020)
Quadrula (s.s.) (Group of Q. metanevra) cylindrica — Simpson (1914)
Unio cilindricus [sic] — de Gregorio (1914)
Unio cilindricus [sic] var. propetipicus — de Gregorio (1914)
Unio cilindricus [sic] var. acrispatus — de Gregorio (1914)
Quadrula cylindrica strigillata — Ortmann (1918), Ortmann (1924), Turgeon et al. (1988), Williams et al. (1993), Turgeon et al. (1998), IUCN (2000), Serb et al. (2003), ITIS (2012), Szumowski et al. (2012), Jones (2015)
Quadrula (Orthonymus) cylindrica — Frierson (1927), Haas (1930), Haas (1969)
Quadrula (Orthonymus) cylindrica-strigillata — Frierson (1927)
Orthonymus cylindricus — Morrison (1966), Haas (1969)
Quadrula cylindricus — Stansbery (1970), Strayer & Jirka (1997)
Quadrula cylindrica cylindrica — Oesch (1984), Turgeon et al. (1988), Williams et al. (1993), Turgeon et al. (1998), Lydeard et al. (1999), Serb et al. (2003), Watters et al. (2009), ITIS (2012), Szumowski et al. (2012), McMurray et al. (2012)
Theliderma cylindrica — Graf & Cummings (2007), Cummings & Graf (2010), Williams et al. (2017), Lopes-Lima et al. (2019), Graf & Cummings (2021), FMCS (2021), Neemuchwala et al. (2023), Hopper et al. (2023), FMCS (2025), Nagel (2025), Campbell & Lydeard (2026)

MUSSELpdb

Taxonomy

Geography