Page last updated
9 August

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The Freshwater Mussels (Unionoida) of the World
(and other less consequential bivalves)

FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the search fields. Either way, you win!

Taxa known only as fossils are highlighted in gray. Those without representatives in fresh waters are highlighted in gold.




NOTICE! This version of the MUSSELpdb online is no longer supported or up-to-date. It will be removed from this web site in the summer of 2019.

Click here to view these data in the current, updated version. Or, click here to browse from the starting page.

Publication Information

Ihering, H.v. 1901. The Unionidae of North America [continued]. Nautilus 15(5): 50-53.
Availably electronically? yes.

Species Described
Unio sapperi Ihering, 1901.
Simpson, 1900, Proc. U.S. Nat. Mus.: 571, footnote 4 [as ‘Unio explicatus’].
Ihering, 1901, Nautilus: 50.
Type(s): TYPE SMF_3477, Río Chixoy, Nebemfld. Río Usumacinta, Guatemala.
= Cyrtonaias sapperi
Taxonomic Opinions
Lampsilis occidens (Lea, 1829). — Ihering (1901: 50).
Lampsilis pictus (Lea, 1834). — Ihering (1901: 50).
Lampsilis sapperi (von Ihering, 1901). — Ihering (1901: 50).
Nephronaias averyi (Lea, 1859). — Ihering (1901: 51).
Nephronaias calamitarum (Morelet, 1849). — Ihering (1901: 51).
Nephronaias medellinus (Lea, 1838). — Ihering (1901: 51).
Nephronaias scamnatus (Morelet, 1849). — Ihering (1901: 51).
Nephronaias spheniopsis (Morelet, 1849). — Ihering (1901: 50).
Nephronaias tabascoensis (Küster, 1856). — Ihering (1901: 51).
Quadrula pernodosa (Lea, 1845). — Ihering (1901: 50).
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