| 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 | Hyrioidea | Hyriidae | Hyriinae | Rhipidodontini | Diplodon species Diplodon rhombeus Spix in Wagner, 1827: specimens4 available nominal species synonyms
 Recent Taxonomic OpinionsRhipidodonta rhombea — Graf & Cummings (2007), Bogan (2010)Diplodon rhombea — ITIS (2013)
 Diplodon (s.s.) rhombeus — Pereira et al. (2014)
 Diplodon rhombeus — Mansur et al. (2020), Graf & Cummings (2021)
 RangeAmazon and São Francisco rivers, Brazil. Map of Georeferenced Specimens
 Argentina
 Brazil|  USNM_85780
 Amazon R., Brazil
 |  USNM_85780
 Amazon R., Brazil
 |  ANSP_125608
 Amazon R., S.A.
 |  |  ZMB_MP_0201
 Brasil
 |  MNHN_MP_0353
 Brasil, Pao de Acucar, Alagoas sur le fleuve Rio San Francisco, Caye de Sable herbier et vase
 |  SMF_11243
 Brasilien
 |  |  SMF_11247
 Brasilien
 |  ZMB_MP_0199
 Brasilien
 |  CM_61.51
 Brazil
 |  |  CM_61.58
 Brazil
 |  UMMZ_111254
 Brazil
 |  UMMZ_111254
 Brazil
 |  |  USNM_125702
 Brazil
 |  ZMB_39379
 Guahyba
 |  SMF_11248
 Rio das Velhas, b. Lagoa Santa Geb.d. Rio S. Francisco, St. Minas, Bras.
 |  |  ZMB_MP_0216
 Rio Grande do Sul
 |  ANSP_167875
 Rio Grande, Boqueirao, Bahia, Brazil
 |  ANSP_167875
 Rio Grande, Boqueirao, Bahia, Brazil
 |  |  ANSP_167875
 Rio Grande, Boqueirao, Bahia, Brazil
 |  ANSP_167875
 Rio Grande, Boqueirao, Bahia, Brazil
 |  BMNH_MP_032
 Rio Grande, Boqueirao, Bahia, Brazil
 |  |  CM_61.9264
 Rio Grande, Boqueirao, Bahia, Brazil
 |  FMNH_53049
 Rio Grande, Boqueirao, Bahia, Brazil
 |  SMF_4646
 Rio Grande, Boqueirao, Bahia, Brazil
 |  |  BMNH_1903-3-12-4-26-7
 Rio Guahyba, Pedras Brancas, Brazil
 |  UMMZ_111859
 Rio Guahyba, Pedras Brancas, Brazil
 |  UMMZ_111859
 Rio Guahyba, Pedras Brancas, Brazil
 |  |  UMMZ_111859
 Rio Guahyba, Pedras Brancas, Brazil
 |  UMMZ_111859
 Rio Guahyba, Pedras Brancas, Brazil
 |  UMMZ_111859
 Rio Guahyba, Pedras Brancas, Brazil
 |  |  UMMZ_111858
 Rio Guahyba, Rio Grande do Sul, Brazil
 |  UMMZ_111858
 Rio Guahyba, Rio Grande do Sul, Brazil
 |  UMMZ_111858
 Rio Guahyba, Rio Grande do Sul, Brazil
 |  |  UMMZ_64002
 Rio San Francisco, Jatoba, Pernambuco, Brazil
 |  UMMZ_64002
 Rio San Francisco, Jatoba, Pernambuco, Brazil
 |  SMF_47102
 Rio Sao Francisco, b. Belem, Pernambuco, Bras.
 |  |  SMF_36572
 Rio Sao Francisco, b. Belem, Staat Pern., Bras.
 |  SMF_11241
 Rio Sao Francisco, b. Piropara, St. Minas, Bras.
 |  SMF_11242
 Rio Sao Francisco, b. Piropara, St. Minas, Brasilien
 |  |  SMF_11249
 Rio Sao Francisco, bei Barra, Brasilien
 |  SMF_24362
 Rio Sao Francisco, bei Jatoba, Staat Pernambuco, Bras.
 |  SMF_24362
 Rio Sao Francisco, bei Jatoba, Staat Pernambuco, Bras.
 |  |  SMF_24363
 Rio Sao Francisco, bei Jatoba, Staat Pernambuco, Bras.
 |  SMF_24363
 Rio Sao Francisco, bei Jatoba, Staat Pernambuco, Bras.
 |  SMF_36720
 Rio Sao Francisco, bei Jatoba, Staat Pernambuco, Bras.
 |  |  SMF_36725
 Rio Sao Francisco, bei Pambu, Staat Bahia, Brasilien
 |  SMF_36723
 Rio Sao Francisco, bei Pambu, Staat, Bahia, Brasilien
 |  SMF_11245
 Rio Sao Francisco, bei Villa Nova, Bras.
 |  |  SMF_11244
 Rio Sao Francisco, Brasilien
 |  SMF_3868
 Rio Sao Francisco, Brasilien
 |  SMF_3866
 Rio Solimoes, Amazonas Geb. Bras.
 |  |  SMF_3866
 Rio Solimoes, Amazonas Geb. Bras.
 |  SMF_3867
 Rio Solimoes, Amazonas Geb. Bras.
 |  SMF_3867
 Rio Solimoes, Amazonas Geb. Bras.
 |  |  SMF_36718
 Rio Tocantins, Amazonas, Geb., b. Cameta, Pará Staat, Bras.
 |  SMF_24364
 Rio Tocantins, Amazonas, Geb., b. Cameta, Staat Pará, Bras.
 |  UMMZ_111256
 Rio Tocantins, Brazil
 |  |  UMMZ_111256
 Rio Tocantins, Brazil
 | 
 PUCRS_MCP_8477. Brazil: (São Francisco): rio São Francisco INPA_1213. Brazil: Distrito Federal: Brasília: (Río de la Plata - Paraná - Paranaíba - Corumbá - São Bartolomeu - Paranoá): Lago Paranoá: Ponte do Bragueto: (15° 51’ 6.08” S, 47° 52’ 44.5” W) -15.83255  -47.84767 
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