Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Lampsilini | Mesonaias explicata

nominal species Lampsilis sapperi Ihering, 1901

image of type lot

Lampsilis sapperi Ihering, 1901 = Mesonaias explicata

Simpson, 1900. Proc. U.S. Nat. Mus. 22: 571, footnote 4 [as ‘Unio explicatus’].
Ihering, 1901. Nautilus 15(5): 50.
HOLOTYPE (ORIG. DESIG.) SMF_3477, Río Chixoy, Nebemfld. Río Usumacinta, Guatemala.

Taxonomic Opinions

+ Mesonaias explicata (Morelet, 1849) — Cummings et al., 2025: 197, pl. 34 bottom left.

= Cyrtonaias sapperi (Ihering, 1901) — Nagel, 2025: 167, fig. 164.

holotype SMF 3477/1 — “Chixoy river in Guatemala” (coll. H. von Ihering, leg. K.T. Sapper)

paratypes SMF 3478/2

= Cyrtonaias sapperi (Ihering, 1901) — Graf & Cummings, 2021: 17.

= Cyrtonaias sapperi von Ihering, 1901 — Bogan, 2010: [10].

= Cyrtonaias sapperi (von Ihering, 1901) — Graf & Cummings, 2007: 306.

= Lampsilis (Cyrtonaias) sapperi Ihering — Haas, 1969: 463.

+ Lampsilis (Cyrtonaias) microdon (Marts.) — Haas, 1929: 313, figs. 2-3.

Typ Senck.-Mus_3477 — Río Chicoy, Gebiet des Río Usumacinta, Guatemala

= Lampsilis (Cyrtonaias) sapperi (von Ihering, 1901) — Frierson, 1927: 85, sp. 385.

= Lampsilis (Proptera) (Group of L. umbrosa) sapperi von Ihering — Simpson, 1914: 176.

= Lampsilis sapperi (von Ihering, 1901) — Ihering, 1901: 50.