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 custom Google search field. Either way, you win!

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Unionoida | Unionoidea | Unionidae | Ambleminae | Popenaiadini | Psoronaias semigranosa

nominal species Unio testudineus Morelet, 1849

Morelet, 1849, Test. Nov. 1: 28.
Type(s): HOLOTYPE BMNH_94-3-22-1, flumen Usumacinta, Guatemala.

= Psoronaias semigranosa

Taxonomic Opinions

= Psoronaias testudinarea [sic] Morelet, 1849 — Bogan, 2010
= Psoronaias testudinea (Morelet, 1849) — Haas, 1969
= Psoronaias testudineus Mor. — Haas, 1930
= Psoronaias testudinea (Morelet) — Haas, 1929
+ Psoronaias semigranosus (von dem Busch, 1845) — Frierson, 1927
= Unio (sec. Elliptio) testudineus Morelet, 1849 — Simpson, 1914
= Unio (sec. Elliptio) testudineus Morelet, 1849 — Simpson, 1900
= Unio (Psoronaias) semigranosus var. testudineus Morelet, 1849 — Martens, 1900
= Unio (Psoronaias) testudineus A. Morelet, 1849 — Fischer & Crosse, 1894
- NO OPINION — Lea, 1870
= Unio testudineus Morelet, 1849 — Reeve, 1865
- NO OPINION — Lea, 1852
= Unio testudineus — Morelet, 1849

Page updated: 08:19:39 Tue 01 Jul 2025