| Page last updatedWed 1 October 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 | Unionoida | Unionoidea | Unionidae | Ambleminae | Popenaiadini | Psoronaias species Psoronaias semigranosa (von dem Busch in Philippi, 1843): specimens2 available nominal species synonyms
 Recent Taxonomic OpinionsPsoronaias semigranosa — Graf & Cummings (2007), Bogan (2010), Pfeiffer et al. (2019), Pfeiffer et al. (2019), Inoue et al. (2020), Smith et al. (2020), Graf & Cummings (2021), Czaja et al. (2023), Freeman et al. (2025), Cummings et al. (2025)Psoronaias herrerae — Graf & Cummings (2007), Bogan (2010), Graf & Cummings (2021), Czaja et al. (2023)
 RangeKnown from the San Fernando, Carrizal, and Pánuco basins, Mexico. Map of Georeferenced Specimens
 Mexico|  ANSP_125583
 “Texas”
 |  ANSP_125583
 “Texas”
 |  ANSP_129925
 “Texas”
 |  |  USNM_347183
 Estera del Avileno, Tamaulipas, Mexico
 |  USNM_347183
 Estera del Avileno, Tamaulipas, Mexico
 |  USNM_347183
 Estera del Avileno, Tamaulipas, Mexico
 |  |  USNM_347184
 Estera del Avileno, Tamaulipas, Mexico
 |  UF_267279
 Lago de Jalpan, Queretaro, Mexico
 |  UF_267279
 Lago de Jalpan, Queretaro, Mexico
 |  |  INHS_89427
 Laguna la Nacha, 28 km E of San Fernando, 118 km SSW of Matamoros, Tamaulipas, Mexico
 |  AMNH_51408
 Mexico
 |  BMNH_1907-10-28-261
 Mexico
 |  |  MCZ_221685
 Mexico
 |  ZMB_MP_0475
 Mexico
 |  MCZ_152861
 near Tampico, Mexico
 |  |  USNM_220015
 Panuco R., Tampico, Mexico
 |  USNM_1282609
 Rio Carrizal, at Rt. Mex. 180 in Nuevo Progreso, ca. 20.8 mi N of road divergence (on Rt. Mex. 180) to Aldma and Est. Manuel, Tamaulipas, Mexico
 |  INHS_89444
 Rio Pánuco, 18 km WSW of Panuco, 55 km SW of Tampico [Oviedo], Tamaulipas, Mexico
 |  |  NCSM_61424
 Rio Pánuco, at Pánuco, Vera Cruz
 |  MCZ_270065
 Rio Panuco, Mexico
 |  USNM_84334
 Rio Panuco, near Tampico, Mexico
 |  |  USNM_84334
 Rio Panuco, near Tampico, Mexico
 |  NCSM_61426
 Rio Sabinas, Hwy. 85, @18 km E Gomez Farias, Tamaulipas, Mexico
 |  INHS_89433
 Rio San Fernando, Cisneros Bridge, Tamaulipas, Mexico
 |  |  INHS_89439
 Rio Tampaón [22 km SSW of Ciudad Valles, 38 km S of Tamuin, 132 km WSW of Tampico], San Luis Potosi, Mexico
 |  USNM_1282607
 Rio Tamuin [Tampaón], at Mex. 85 just S of Alvero Obregon, S of Ciudad Valles, San Luis Potosi, Mexico.
 |  USNM_1282620
 Rio Tamuin [Tampaón], at Mex. 85 just S of Alvero Obregon, S of Ciudad Valles, San Luis Potosi, Mexico.
 |  |  USNM_1282608
 San Luis Potosi, Rio Huichiuayan at road to Xilitla ca. 0.7 road miles from its junction with Rt. Mex. 85 (this junction is ca. 43.6 roadmiles S of junction of Rt. Mex. 85 and Rt. Mex. 70 in Ciudad Valles). N21°25'30" W9?°54'30"
 |  USNM_1282621
 San Luis Potosi, Rio Huichiuayan at road to Xilitla ca. 0.7 road miles from its junction with Rt. Mex. 85 (this junction is ca. 43.6 roadmiles S of junction of Rt. Mex. 85 and Rt. Mex. 70 in Ciudad Valles). N21°25'30" W9?°54'30"
 |  AMNH_30508
 Tampico, Mexico
 |  |  BMNH_MP_415
 Tampico, Mexico
 |  ZMB_MP_0483
 Tampico, Mexico
 |  ZMB_MP_0487
 Tampico, Mexico
 | 
 
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