Unio grandensis Conrad, 1855
Conrad, 1855. Proc. Acad. Nat. Sci. 7: 256.
Type(s): TYPE LOST XXX_UNKNOWN, Rio Grande, Texas.

Glebula rotundata — Simpson (1900), Simpson (1914), Clench & Turner (1956), Haas (1969), Burch (1975), Brim Box & Williams (2000), Watters et al. (2009)
Glebula suborbiculata — Frierson (1927)
Cyrtonaias tampicoensis — R.I. Johnson (1999)
Cyrtonaias berlandierii — Cummings et al. (2025)

Unio berlandierii Lea, 1857
Lea, 1857. Proc. Acad. Nat. Sci. 9: 101.
Lea, 1860. Jour. Acad. Nat. Sci. 4 [O. 8]: 369 [51], pl. 65, fig. 194.
Type(s): LECTOTYPE [AS HOLOTYPE] USNM_84427 (by R.I. Johnson, 1974: 20), Matamoras, Mexico.

Lampsilis (Proptera) berlandierii — Simpson (1900), Simpson (1914)
Unio (Lampsilis) berlandieri — Martens (1900)
Lampsilis (Cyrtonaias) tampicoensis-berlandieri — Frierson (1927)
Lampsilis (Cyrtonaias) tampicoensis berlandierii — Haas (1929), Haas (1969)
Lampsilis (sec. Cyrtonaias) berlandierii — Thiele (1934)
Lampsilis (Cyrtonaias) berlandieri — Haas (1969)
Cyrtonaias tampicoensis — Burch (1975), Howells et al. (1996), R.I. Johnson (1998), R.I. Johnson (1999), Graf & Cummings (2007), Pfeiffer et al. (2019), Graf & Cummings (2021)
Cyrtonaias berlandierii — Cummings et al. (2025)

Unio saladoensis Lea, 1860
Lea, 1860. Proc. Acad. Nat. Sci. 12: 305.
Lea, 1860. Jour. Acad. Nat. Sci. 4 [O. 8]: 370, [52] pl. 65, fig. 195.
Type(s): TYPE LOCALITY TYPE_LOCALITY_MP_007, Rio Salado, New Leon, Mexico.

Lampsilis (Proptera) saladoensis — Simpson (1900), Simpson (1914)
— Martens (1900)
Lampsilis (Cyrtonaias) saladoensis — Frierson (1927), Haas (1969)
Cyrtonaias tampicoensis — R.I. Johnson (1998), R.I. Johnson (1999), Graf & Cummings (2021)
Cyrtonaias saladoensis — Graf & Cummings (2007), Bogan (2010), Cummings & Graf (2010)
Cyrtonaias berlandierii — Cummings et al. (2025)

Unio heermannii Lea, 1861
Lea, 1861. Proc. Acad. Nat. Sci. 13: 392.
Lea, 1862. Jour. Acad. Nat. Sci. 5 [O. 9]: 194 [16], pl. 26, fig. 263.
Type(s): LECTOTYPE [AS HOLOTYPE] USNM_83932 (by Johnson & Baker, 1973: 157), Medina R., Texas.

Lampsilis (Proptera) tampecoensis [sic] — Simpson (1900)
Lampsilis (Proptera) tampicoensis — Simpson (1914)
Lampsilis (Cyrtonaias) tampicoensis-heermanni — Frierson (1927)
Lampsilis (Cyrtonaias) tampicoensis heermannii — Haas (1969)
Cyrtonaias tampicoensis — Howells et al. (1996), R.I. Johnson (1998), R.I. Johnson (1999)
Cyrtonaias berlandierii — Cummings et al. (2025)

Unio heermanii B.H. Wright, 1888
‘Lea’ of Authors.
B.H. Wright, 1888. Check List N. Amer. Unionidae etc.: [3].
Singley, 1893. Geol. Surv. Texas (1892): 322.
R.I. Johnson, 1998. Occ. Pap. Moll. 5(76): 448.
R.I. Johnson, 1999. Occ. Pap. Moll. 6(77): 27.
(error for Unio heermannii Lea, 1861)

Unio granadensis Simpson, 1900
‘Conrad’ of Authors.
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 598.
Simpson, 1914. Descr. Cat. Naiades: 289 [corrected in corrigenda].
Morrison, 1943. Nautilus 57: 15.
(error for Unio grandensis Conrad, 1855)

Glebula rotundata — Clench & Turner (1956), Haas (1969), Burch (1975)

Cyrtonaias tampicoensis Bogan & Hoeh, 2000
‘Lea’ of Authors.
Bogan & Hoeh, 2000. Geol. Soc. London Spec. Publ. 177: Table 1.
Hoeh et al., 2001. [in] Bauer & Wächtler, Ecol. Evol. Unionoida: 260.
Hoeh et al., 2002. Malac. Review 31/32(2): 127.
Hoeh et al., 2002. Evolution 56(11): Table 1.
Roe & Hoeh, 2003. Mol. Syst. Phylogeo. Moll.: 110.
Campbell et al., 2005. Invert. Biol. 124(2): Appendix 1.
Zanatta & Murphy, 2006. MPE 41(1): Table 1.
Walker et al., 2006. Malacologia 48(1-2): Table 2.
Chapman et al., 2008. Malacologia 50(1-2): 306, Table 1.
Chapman et al., 2008. BMC Evol. Biol. 8: 11, Table 4.
Campbell et al., 2008. Molec. Ecol. Res. 8: Table 1.
Burlakova et al., 2012. Aquatic Biosystems 8(12): [suppl. 1].
Campbell & Lydeard, 2012. Amer. Malac. Bull. 30(1): Appendix 1.
Pfeiffer et al., 2016. Conserv. Genet. 17(2): 281, Table 1.
Pfeiffer et al., 2019. Zool. Scripta 48: 109, Table 2.
Smith et al., 2019. Systemat. Biodiv. 17(4): Table S1.
Burlakova et al., 2019. Malacologia 62(2): Table 1.
Pfeiffer et al., 2019. MPE 137: Table 1.
Inoue et al., 2020. Zootaxa 4816(4): 460.
Smith et al., 2020. Cladistics 36: Table 1.
Freeman et al., 2025. Malacologia 67(1/2): 247, Table 2.
(misidentified reference to Unio tampicoensis Lea, 1838)

Cyrtonaias berlandierii — Cummings et al. (2025)