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Unio tampicoensis Lea, 1838

Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 24, pl. 7, fig. 18.
Type(s): LECTOTYPE [AS HOLOTYPE] USNM_84843 (by Johnson & Baker, 1973: 172), Tampico, Mexico.

Lampsilis (Proptera) tampecoensis [sic] — Simpson (1900)
Unio (Lampsilis) tampicoensis — Martens (1900)
Lampsilis tampicoensis — Pilsbry (1910)
Lampsilis (Proptera) tampicoensis — Simpson (1914)
Lampsilis (Cyrtonaias) tampicoensis — Frierson (1927), Haas (1929)
Lampsilis (Cyrtonaias) tampicoensis tampicoensis — Haas (1969)
Cyrtonaias tampicoensis — Burch (1975), Turgeon et al. (1988), Williams et al. (1993), Howells et al. (1996), Turgeon et al. (1998), ... FMCS (2021), Czaja et al. (2023), Hopper et al. (2023), Freeman et al. (2025), FMCS (2025)
Cyrtonaias tampicoensis tampicoensis — ITIS (2012)
Mesonaias tampicoensis — Cummings et al. (2025)

Unio tecomatensis Lea, 1841

Lea, 1841. Proc. Amer. Phil. Soc. 2: 30.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: 234 [72], pl. 21, fig. 48.
Type(s): LECTOTYPE [AS HOLOTYPE] USNM_85338 (by Johnson & Baker, 1973: 172), Tecomate River, near Tlacotalpan, [Vera Cruz State], Mexico.

Lampsilis (Proptera) tecomatensis — Simpson (1900), Simpson (1914)
Unio (Lampsilis) tampicoensis var. tecomatensis — Martens (1900)
Unio tecomensis [sic], sp, aff. — de Gregorio (1914)
Lampsilis (Cyrtonaias) tampicoensis-tecomatensis — Frierson (1927)
Lampsilis (Cyrtonaias) tampicoensis tecomatensis — Haas (1969)
Cyrtonaias tampicoensis — R.I. Johnson (1999)
Cyrtonaias tecomatensis — Contreras-Arquieta (2000)
Mesonaias tampicoensis — Cummings et al. (2025)

Actinonaias (Disconaias) walkeri H.B. Baker, 1922

H.B. Baker, 1922. Occ. Pap. Mus. Zool. Univ. Mich. (106): 20, pl. 1, fig.s 1-2; pl. 9, fig. 49; pl. 10, figs. 48-50; pl. 11, figs. 48-49.
Type(s): HOLOTYPE (ORIG. DESIG.) UMMZ_31844, Rio San Juan, Mexico.

Lampsilis (Disconaias) fimbriata — Frierson (1927), Haas (1969)
Actinonaias walkeri — R.I. Johnson (1998), Contreras-Arquieta (2000)
Mesonaias tampicoensis — Cummings et al. (2025)

Lampsilis rovirosai sanjuanensis H.B. Baker, 1922

H.B. Baker, 1922. Occ. Pap. Mus. Zool. Univ. Mich. (106): 27, pl. 8, fig. 39-42.
(intro'd as intra-sp. of Unio (Lampsilis) rovirosai Pilsbry, 1900)
Type(s): HOLOTYPE (ORIG. DESIG.) UMMZ_34890, Rio San Juan, nr Haciendo de Cuatotolapam, Mexico.

Lampsilis (Cyrtonaias) umbrosa — Frierson (1927)
Mesonaias tampicoensis — Cummings et al. (2025)

Lampsilis (Cyrtonaias) tampicoensis kusteriana Frierson, 1927

‘Lea’ Küster, 1862. Conchyl. Cab. 9(2): 275, pl. 93, fig. 1 [as ‘Unio tampicoënsis’].
Frierson, 1927. Check List N. Amer. Naiades: 85, sp. 383d.
(intro'd as intra-sp. of Unio tampicoensis Lea, 1838)
Type(s): TYPE LOST XXX_UNKNOWN, [locality unknown].

Lampsilis (Cyrtonaias) tampicoensis-kusteriana — Frierson (1927)
Lampsilis (Cyrtonaias) tampicoensis kusteriana — Haas (1969)
Cyrtonaias tampicoensis — R.I. Johnson (1999)
Mesonaias tampicoensis — Cummings et al. (2025)

Cyrtonaias grandensis Metcalf, 1982

Metcalf, 1982. Symp. Rec. Tex.: ??.

Cyrtonaias tampicoensis — Howells et al. (1996)

Unio tampicoensis Küster, 1862

‘Lea’ Küster, 1862. Conchyl. Cab. 9(2): 275, pl. 93, fig. 1 [as ‘tampicoënsis’].
(reference to Unio tampicoensis Lea, 1838)

Unio (Lampsilis) tampicoensis var. tecomatensis — Martens (1900)
Lampsilis (Cyrtonaias) tampicoensis-kusteriana — Frierson (1927)
Lampsilis (Cyrtonaias) tampicoensis kusteriana — Haas (1969)

Lampsilis tampecoensis Simpson, 1900

‘Lea’ Simpson, 1900. Proc. U.S. Nat. Mus. 22: 570.
(error for Unio tampicoensis Lea, 1838)

Unio tecomensis de Gregorio, 1914

‘Lea’ de Gregorio, 1914. Il Nat. Siciliano 2: 56.
(error for Unio tecomatensis Lea, 1841)

Actinonaias ligamentina ligamentina — Watters et al. (2009)