species Mesonaias umbrosa (Lea, 1856): specimens

Recent Taxonomic Opinions

Cyrtonaias umbrosa — Graf & Cummings (2007), Bogan (2010), Graf & Cummings (2021), Czaja et al. (2023)
Mesonaias umbrosa — Cummings et al. (2025)

Range

Vera Cruz, Mexico. (Central America: CA1)

Map of Georeferenced Specimens

specimens map of Mesonaias umbrosa

MUSSELp Specimen Records

Type Specimens

MNHN_IM-2000-1634
Coatzacoalcos, Vera Cruz, Mexico
lectotype
Unio alienigenus Crosse & Fischer, 1894

USNM_84848
Medellin R., Mexico
lectotype
Unio umbrosus Lea, 1856

Other Specimens by Collection | show by country

1 Specimens from AMNH

AMNH_29176
Mexico

3 Specimens from BMNH

BMNH_MP_419
Medellin River, Mexico

BMNH_1901-6-22-1513-1515
Medellin River, Mexico

BMNH_1964172
Medellin River, Mexico

1 Specimens from CM

CM_61.2006
Medellin, near Vera Cruz, Mexico

3 Specimens from FMNH

FMNH_22251
Mexico

FMNH_49613
Pital Creek, near Pital y Mozutla (S of Tuxpan), Veracruz, Mexico

FMNH_49612
Rio Uzpanapa, near Cascajal, Veracruz, Mexico

1 Specimens from INHS

INHS_21770
Mexico

6 Specimens from MNHN

MNHN_MP_1323
Fleuve du Medequigue, near Vera Cruz

MNHN_MP_1294
Mexique

MNHN_MP_1352
Mexique

MNHN_MP_1405
pres per les bords du fleuve Chicattien, Mexique [near the banks of the Chicattien River, Mexico]

MNHN_MP_1282
Vera Cruz, Mexique

MNHN_MP_1285
Vera Cruz, Mexique

1 Specimens from OSUM

OSUM_84189
Vera Cruz

5 Specimens from SMF

SMF_12413
Mexiko

SMF_12414
Mexiko

SMF_12412
N. Mexico

SMF_12406
Rio Medellin, b. Veracruz, Mexiko

SMF_12411
Vera Cruz, Mexico

4 Specimens from UF

UF_270338
Salinas River, Mexico

UF_270347
Veracruz, Mexico

UF_270348
Veracruz, Mexico

UF_93189
Veracruz, Mexico

10 Specimens from USNM

USNM_1282344-45
Veracruz, impoundment on Rio Jamapa at La Tejar, ca. 0.25 rivermiles above the bridge of road to Medellin (bridge is 5.3 roadmiles from the junction of this road with Rt. Mex. 140), S of Veracruz (city). N19°04'00" W96°09'30"

USNM_1282357
Veracruz, Rio Cotaxtla (upper Rio Atoyac) at Rt. Ver. 149 in Cotaxtla (turn-off to road to Cotaxtla from Rt. Mex. 140 is ca. 26.1 roadmiles SW of divergence of Rt. Mex, 150 and Rt. Mex. 140 S of Veracruz

USNM_1282343
Veracruz, Rio Jamapa at road to Medellin at El Tejar, ca. 5.3 roadmiles from junction of this road with Rt. Mex. 140, S of Veracruz (city)

USNM_1282354
Veracruz, Rio Papaloapan off road from Ciudad Aleman to Tuxtepec; ca. 0.5 roadmiles by dirt road to river; dirt road entrance to Aleman-Tuxtepec road is ca. 2.4 roadmiles W of divergence of roads to Ciudad Aleman and Cosamaloapan

USNM_1282358
Veracruz, Rio Papaloapan off road from Ciudad Aleman to Tuxtepec; ca. 0.5 roadmiles by dirt road to river; dirt road entrance to Aleman-Tuxtepec road is ca. 2.4 roadmiles W of divergence of roads to Ciudad Aleman and Cosamaloapan

USNM_1282355
Veracruz, Rio Papaloapan off Rt. Mex. 175 in Cosamaloapan

USNM_1282356
Veracruz, Rio Papaloapan off Rt. Mex. 175 in Cosamaloapan

USNM_1282348-53
Veracruz, Rio San Juan at Rt. Mex. 25 ca. 20.5 roadmiles S of Santiago Tuxtla (junction of Rt. Mex. 25 and Rt. Mex. 180), and ca. 16.2 roadmiles from junction of Rt. Mex. 25 and Rt. Mex. 145

USNM_1282346-47
Veracruz, Rio Tesechoacan at Tesechoacan, ca. 0.5 miles N of bridge of Rt. Mex. 145 (ca. 9.3 roadmiles W of junction of Rt. Mex. 145 and Rt. Mex. 25)

USNM_1283187
Veracruz, Rio Tesechoacan at Tesechoacan, ca. 0.5 miles N of bridge of Rt. Mex. 145 (ca. 9.3 roadmiles W of junction of Rt. Mex. 145 and Rt. Mex. 25)