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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 | Unionoida | Unionoidea | Unionidae | Ambleminae | Lampsilini | Mesonaias species Mesonaias umbrosa (Lea, 1856): specimens 2 available nominal species synonyms Recent Taxonomic OpinionsCyrtonaias umbrosa — Graf & Cummings (2007), Bogan (2010), Graf & Cummings (2021), Czaja et al. (2023) Mesonaias umbrosa — Cummings et al. (2025) RangeVera Cruz, Mexico. Map of Georeferenced Specimens
Mexico MNHN-IM-2000-1634 Coatzacoalcos, Vera Cruz, Mexico
|  MNHN-IM-2000-1634 Coatzacoalcos, Vera Cruz, Mexico
|  MNHN_MP_1323 Fleuve du Medequigue, near Vera Cruz
|  USNM_84848 Medellin R., Mexico
|  USNM_84848 Medellin R., Mexico
|  BMNH_1901-6-22-1513-1515 Medellin River, Mexico
|  BMNH_1964172 Medellin River, Mexico
|  BMNH_MP_419 Medellin River, Mexico
|  ZMB_MP_0471 Medellin River, Mexico
|  ZMB_MP_0481 Medellin River, Mexico
|  CM_61.2006 Medellin, near Vera Cruz, Mexico
|  AMNH_29176 Mexico
|  FMNH_22251 Mexico
|  INHS_21770 Mexico
|  ZMB_MP_0476 Mexico
|  ZMB_MP_0485 Mexico
|  SMF_12413 Mexiko
|  SMF_12413 Mexiko
|  SMF_12414 Mexiko
|  MNHN_MP_1294 Mexique
|  MNHN_MP_1352 Mexique
|  SMF_12412 N. Mexico
|  FMNH_49613 Pital Creek, near Pital y Mozutla (S of Tuxpan), Veracruz, Mexico
|  MNHN_MP_1405 pres per les bords du fleuve Chicattien, Mexique [near the banks of the Chicattien River, Mexico]
|  SMF_12406 Rio Medellin, b. Veracruz, Mexiko
|  FMNH_49612 Rio Uzpanapa, near Cascajal, Veracruz, Mexico
|  UF_270338 Salinas River, Mexico
|  OSUM_84189 Vera Cruz
|  SMF_12411 Vera Cruz, Mexico
|  MNHN_MP_1282 Vera Cruz, Mexique
|  MNHN_MP_1285 Vera Cruz, Mexique
|  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"
|  UF_270347 Veracruz, Mexico
|  UF_270348 Veracruz, Mexico
|  UF_93189 Veracruz, Mexico
|  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_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_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_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_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_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)
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COMA_B.0715. Rio Papaloapan, Veracruz, México COMA_B.0976. Rio Papaloapan, Veracruz, México COMA_B.0188. Rio Tonto, Veracruz, México |