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Page last updated
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 | Unionida | Hyrioidea | Hyriidae | Hyriinae | Rhipidodontini | Diplodon

species Diplodon piceus (Lea, 1860): specimens
     1 available nominal species synonym

Recent Taxonomic Opinions

Diplodon (s.s.) rhuacoicusRumi et al. (2008)
Diplodon (s.s.) piceusPereira et al. (2014)
Diplodon piceusMansur et al. (2020), Graf & Cummings (2021)

Range

Paraná and adjacent coastal streams, Brazil and Uruguay.

Map of Georeferenced Specimens

species map


Argentina

specimen
ANSP_334550

Arroyo Tigua, Chajari, Entre Rios, Argentina

specimen
CM_MP_39

Arroyo Tigua, Chajari, Entre Rios, Argentina

PUCRS-MCP_6493. Argentina: Entre Rios: Chajari: (Río de la Plata - Uruguay): Arroio Tiguá


Brazil

specimen
ZMB_MP_0278

Aus dem Guahyba

specimen
USNM_162392

Brazil

specimen
USNM_162394

Brazil

specimen
UMMZ_111218

Brazil

specimen
UMMZ_111218

Brazil

specimen
UMMZ_111218

Brazil

specimen
USNM_162393

Guahyba, Brazil

specimen
USNM_162391

Pelotas, Rio Grande do Sul, Brazil

specimen
USNM_536725

Porto Alegre

specimen
USNM_536725

Porto Alegre

specimen
USNM_536735

Praia do Rio Guaiba, Porto Alegre

specimen
USNM_536735

Praia do Rio Guaiba, Porto Alegre

specimen
USNM_122301

Rio Camaguam, Brazil

specimen
USNM_122301

Rio Camaguam, Brazil

specimen
CM_61.11121

Rio Camaquam, Rio Grande do Sul, Brazil

specimen
CM_68.1

Rio Dos Sinos, 5 km W Sao Leopoldo, Rio Grande do Sul, Brazil

specimen
MCZ_266382

Rio Uruguay, Itaquy, Rio Grande do Sul, Brazil

specimen
UMMZ_111873

Rio Uruguay, Uruguayana, Rio Grande do Sul, Brazil

specimen
UMMZ_111873

Rio Uruguay, Uruguayana, Rio Grande do Sul, Brazil

specimen
UMMZ_111873

Rio Uruguay, Uruguayana, Rio Grande do Sul, Brazil

PUCRS-MCP_3600. Brazil: Rio Grande do Sul: (Río de la Plata - Uruguay): Uruguaiana: -29.74969 -57.09803


Uruguay

specimen
USNM_335776

Arroyo Canelon Chico, Dept. Canelones, Uruguay

specimen
USNM_335776

Arroyo Canelon Chico, Dept. Canelones, Uruguay

specimen
USNM_331284

Arroyo Canelones, Uruguay

specimen
USNM_331284

Arroyo Canelones, Uruguay

specimen
USNM_348267

Arroyo Caracoles, Dept. Rio Negro, Uruguay

specimen
USNM_180774

Arroyo del Pantanoso, Dept. of Montevideo, Uruguay

specimen
USNM_180774

Arroyo del Pantanoso, Dept. of Montevideo, Uruguay

specimen
CM_64.75

Arroyo Illescas, Depto. de Florida, Uruguay

specimen
USNM_180768

Arroyo Malvin, Dept. of Montevideo, Uruguay

specimen
USNM_180768

Arroyo Malvin, Dept. of Montevideo, Uruguay

specimen
CM_61.5863

Arroyo Miguelete, Montevideo, Uruguay

specimen
USNM_381162

Belen, Salto Uruguay

specimen
USNM_346814

Colonia, Uruguay

specimen
CM_61.5861

in a pond along the Rio Negro, Santa Isabel, Uruguay

specimen
USNM_380485

Nuevo Palmira, Dept. Colonia, Uruguay

specimen
USNM_381382

Paso de Malo, Rio Yaguaron, Cerro Largo, Uruguay

specimen
USNM_346796

Paso de Malo, Rio Yaguaron, Cerro Largo, Uruguay

specimen
USNM_348265

Paso de San Borje [?], Rio Yi, Durazno, Uruguay

specimen
USNM_347881

Rio Negro, Uruguay

specimen
USNM_381376

Rio Santa Lucia, Canelones, Uruguay

specimen
USNM_381101

Rio Yaguaron, Dept. Cerro Largo, Uruguay

specimen
USNM_381101

Rio Yaguaron, Dept. Cerro Largo, Uruguay

specimen
USNM_381101

Rio Yaguaron, Dept. Cerro Largo, Uruguay

specimen
USNM_340655

Rio Yaguaron, Dept. Cerro Largo, Uruguay

specimen
CM_64.87

Rio Yi, Dept. Florida, Uruguay

specimen
BMNH_79-10-15-150-3

Rio Yi, Durazno, Uruguay

specimen
USNM_346766

Rio Yi, Durazno, Uruguay

specimen
USNM_380751

Uruguay R., Nueva Palmira, Dept. Colonia, Uruguay


Uruguay, Argentina, or Brazil

specimen
ANSP_125824

Uruguay R.

specimen
USNM_85643

Uruguay R., S. America

specimen
USNM_85643

Uruguay R., S. America

specimen
USNM_85643A

Uruguay R., S. America