species Psoronaias semigranosa (von dem Busch in Philippi, 1843): specimens

Recent Taxonomic Opinions

Psoronaias semigranosa — Graf & Cummings (2007), Bogan (2010), Graf & Cummings (2021), Czaja et al. (2023), Cummings et al. (2025)
Psoronaias herrerae — Graf & Cummings (2007), Bogan (2010), Graf & Cummings (2021), Czaja et al. (2023)
“Psoronaias semigranosa” ** — Pfeiffer et al. (2019), Pfeiffer et al. (2019), Inoue et al. (2020), Smith et al. (2020), Freeman et al. (2025), Campbell & Lydeard (2026)

Range

Known from the San Fernando, Carrizal, and Pánuco basins, Mexico. (Central America: CA1)

Map of Georeferenced Specimens

specimens map of Psoronaias semigranosa

MUSSELp Specimen Records

Type Specimens

USNM_347183
Estera del Avileno, Tamaulipas, Mexico
holotype
Elliptio herrerae Marshall, 1923

USNM_347184
Estera del Avileno, Tamaulipas, Mexico
paratype
Elliptio herrerae Marshall, 1923

MCZ_152861
near Tampico, Mexico
lectotype
Unio semigranosus von dem Busch in Philippi, 1843

Other Specimens by Collection | show by country

2 Specimens from AMNH

AMNH_51408
Mexico

AMNH_30508
Tampico, Mexico

2 Specimens from ANSP

ANSP_129925
“Texas”

ANSP_125583
“Texas”

2 Specimens from BMNH

BMNH_1907-10-28-261
Mexico

BMNH_MP_415
Tampico, Mexico

4 Specimens from INHS

INHS_89427
Laguna la Nacha, 28 km E of San Fernando, 118 km SSW of Matamoros, Tamaulipas, Mexico

INHS_89444
Rio Pánuco, 18 km WSW of Panuco, 55 km SW of Tampico [Oviedo], 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

2 Specimens from MCZ

MCZ_221685
Mexico

MCZ_270065
Rio Panuco, Mexico

2 Specimens from NCSM

NCSM_61424
Rio Pánuco, at Pánuco, Vera Cruz

NCSM_61426
Rio Sabinas, Hwy. 85, @18 km E Gomez Farias, Tamaulipas, Mexico

1 Specimens from UF

UF_267279
Lago de Jalpan, Queretaro, Mexico

7 Specimens from USNM

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

USNM_84334
Rio Panuco, near Tampico, Mexico

USNM_1282620
Rio Tamuin [Tampaón], at Mex. 85 just S of Alvero Obregon, S of Ciudad Valles, 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_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"

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"