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Thu 3 September 2025 |
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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Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Popenaiadini | Psoronaias semigranosa nominal species Unio crocodilorum var. G praestricta Fischer & Crosse, 1894  Fischer & Crosse, 1894. Miss. Sci. Mexique, Rech. Zool. 2(16): 578, pl. 60, fig. 5.
(intro'd as intra-sp. of Unio crocodilorum Morelet, 1849)
Type(s): SYNTYPES BMNH_1893-2-4-2031, River Usumacinta, Guatemala.
= Psoronaias semigranosa Taxonomic Opinions+ Psoronaias crocodilorum (Morelet, 1849) — Haas, 1969 + Psoronaias crocodilorum (Morelet, 1849) — Frierson, 1927 + Unio (Psoronaias) crocodilorum Morelet, 1849 — Martens, 1900 = Unio (Psoronaias) crocodilorum var. G, praestricta — Fischer & Crosse, 1894
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