Bivalvia

nominal species Unio taumilapanus Conrad, 1855

Unio taumilapanus Conrad, 1855 = species iquirenda

(renamed Unio tamaulipasensis Fischer & Crosse, 1894)
Conrad, 1855. Proc. Acad. Nat. Sci. 7: 256. [nomen dubium]
Type(s): TYPE LOST XXX_UNKNOWN, San Juan River, Taumilapas.

Taxonomic Opinions

- UNASSIGNED — Cummings et al., 2025: 399.

= Sphenonaias taumilapana (Conrad, 1855) — Czaja et al., 2023: 88.

- UNASSIGNED — Graf & Cummings, 2021: 29.

= Sphenonaias taumilapanus (Conrad, 1855) — Smith et al., 2020: 69.

= Sphenonaias taumilapana (Conrad, 1855) — Pfeiffer et al., 2016: 280, 289.

= Sphenonaias taumilapana Conrad, 1855 — Bogan, 2010: [web].

= Sphenonaias taumilapana — Cummings & Graf, 2010: 377.

= Sphenonaias taumilapana (Conrad, 1855) — Graf & Cummings, 2007: 309.

= Sphenonaias tanualipana [sic] Conrad, 1855 — Contreras-Arquieta, 2000: 44.

+ Quincuncina mitchelli (Simpson, 1896) — R.I. Johnson, 1999: 19.

+ Quincuncina mitchelli (Simpson in Dall, 1896) — Howells et al., 1996: 127.

= Nephronaias (Sphenonaias) taumilapana (Conrad) — Haas, 1969: 205.

+ Elliptio (Barynaias) tamaulipasensis (Conrad, 1855) [sic] — Frierson, 1927: 39.

- UNASSIGNED — Simpson, 1914: 718.

- UNASSIGNED — Martens, 1900: 521, 652.

- OMITTED — Simpson, 1900.

+ Unio tamaulipasensis Conrad (emend.) — Fischer & Crosse, 1894: 621.

= Unio taumilapanus Con. — B.H. Wright, 1888: [5].

- UNASSIGNED — Lea, 1870: 64.