| 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 | Etherioidea | Mycetopodidae | Mycetopodinae | Mycetopoda species Mycetopoda siliquosa (Spix in Wagner, 1827): specimens13 available nominal species synonyms (18 total synonyms)
 Recent Taxonomic OpinionsMycetopoda siliquosa — Graf & Cummings (2007), Rumi et al. (2008), Bogan (2010), Whelan et al. (2011), Pereira et al. (2014), ... Mansur et al. (2020), Graf & Cummings (2021), Breure et al. (2022), Torres et al. (2024), Cummings et al. (2025) RangeWidespread from the Paraná System, north to the São Francisco and Amazon basins, South America. Map of Georeferenced Specimens
 ZMA_210446. Argentina, Near La Plata, Rio Santiago ZMA_210171. Argentina, Prov.de Buenos Aires, Rio de la Plata, B.A. 
 Argentina|  USNM_381669
 Buenos Aires, Argentina
 |  UMMZ_186189
 Coast of the Rio de la Plata, front to Belgrano (Buenos Aires city) in the intersection of Pampa street with “Costanera” avenue, Buenos Aires, Argentina
 |  UMMZ_186189
 Coast of the Rio de la Plata, front to Belgrano (Buenos Aires city) in the intersection of Pampa street with “Costanera” avenue, Buenos Aires, Argentina
 |  |  SMF_3800
 Corrientes, Rio Parana, Argentina
 |  SMF_3800
 Corrientes, Rio Parana, Argentina
 |  MCZ_212446
 Isla la Dionisia, Departmento de San Javier, Pcia. de Santa Fe, Argentina
 |  |  CM_MP_64
 Isla Malmajue, Colastine River, Santa Fe, Argentina
 |  CM_MP_61
 Isla Malmajue, Colastine, North of Sta. Fe City, Argentina
 |  MNHN_MP_0551
 La Plata, R.A.
 |  |  MCZ_111723
 Laguna Guadaloupe, Santa Fe, Argentina
 |  AMNH_100113
 Laguna Guadalupe, Dpto. La Capital, Prov, Santa Fe, Argentina
 |  SMF_164376
 Laguna Guadalupe, Santa Fe, Argentina
 |  |  USNM_381668
 Laguna Guadalupe, Santa Fe, Argentina
 |  FMNH_216474
 Laguna Setubal (= Laguna Guadelupe), Guadeloupe, Prov. Santa Fe, Argentina
 |  FMNH_17225
 Laguna Setubal, Santa Fe, Argentina
 |  |  USNM_86789
 Rio Corrientes, S.A.
 |  UF_161458
 Rio Gualeguaychu at Highway 14, 33 km N of Gualeguaychu, Entre Rios, Argentina
 |  FMNH_104801
 Rio Paraguay, near Santa Fe, Argentina
 |  |  FMNH_8366
 Rio Paraná, Argentina
 |  MNHN_MP_0552
 Rio Paraná, Republique Argentine
 |  AMS_126859
 Rio Santa Fe, trente a la Ciudad de Santa Fe, Argentina
 |  |  MCZ_111725
 Rio Santiago, Buenos Aires, Argentina
 |  FMNH_17226
 Rio Santiago, La Plata, Prov. Buenos Aires, Argentina
 |  SMF_12177
 Rio Santiago, nahe Mund ind R. Plata, Argentinien
 |  |  ZMB_64153
 Rio Santiago, Prov. B. Aires, Argentina
 |  BMNH_1922-8-23-145-146
 Rio Santiago, prov. Buenos Aires, Argentina
 |  BMNH_1922-8-23-145-146
 Rio Santiago, prov. Buenos Aires, Argentina
 | 
 FMNH_305139.  Argentina, Santa Fé ZMA_210466. Argentina, Near La Plata, Rio Santiago ZMA_210198. Argentina, Prov. de Corrientes, Arroyo Botelito ZMA_210199. Argentina, Prov. de Santa Fé, Laguna Guadalupe CAS_93987. ARGENTINA: Santa Fe Province: Depto. La Capital: Laguna de Guadalupe CAS_92441. ARGENTINA: Santa Fe Province: Laguna Guadalupe MNHN_MP_0317B. Province de Corrientes, Argentina and Santa Cruz de la Sierra, Bolivia FMNH_104804. Rio Paraguay, near Santa Fe, Argentina MNHN-IM-2000-35824. Rio Paraná, Corrientes, Argentina 
 Bolivia|  UF_40584
 4 km N, 2 km E Montero, Santiestaban Province, Santa Cruz Departemento, Bolivia
 |  UF_93353
 Arroyo Jamamachi Uno, Tributary Rio Matos, 33 km E and 12 km S of San Borja, Yacuma Province, Beni Departemento, Bolivia
 |  MCZ_MP.215
 Beni River, Bolivia
 |  |  AMNH_30857
 Bolivia
 |  ANSP_227086
 Bolivia
 |  ANSP_227086
 Bolivia
 |  |  MCZ_MP.211
 Bolivia
 |  ANSP_125408
 Bolivia ?
 |  INHS_17864
 borrow pit (Rio Amazon - Rio Apere Dr.), 3 km E Estacion Biologica del Beni on rd. to San Ignacio, Beni, Bolivia
 |  |  ANSP_125411
 Chiquitos, Bolivia
 |  MNHN_MP_0319
 Chiquitos, Bolivia
 |  MNHN_MP_0319
 Chiquitos, Bolivia
 |  |  MNHN_MP_0319
 Chiquitos, Bolivia
 |  UMMZ_112652
 Laguitas, Bolivia
 |  UMMZ_112652
 Laguitas, Bolivia
 |  |  CM_61.62
 Languita, Bolivia
 |  MNHN_MP_0317
 Province de Corrientes, Argentina and Santa Cruz de la Sierra, Bolivia
 |  MNHN_MP_0317
 Province de Corrientes, Argentina and Santa Cruz de la Sierra, Bolivia
 |  |  UF_93374
 Rio Ibare, 17 km SSE San Lorenzo, Marbon Province, Beni Departemento, Bolivia
 |  UF_93370
 Rio Ibare, Puerto Almecen, Cercado Province, Beni Departemento, Bolivia
 |  INHS_17839
 Rio Matos (Rio Amazon - Rio Apere Dr.), 6 km E Estación Biologica del Beni on rd. to San Ignacio, Beni, Bolivia
 |  |  INHS_17839
 Rio Matos (Rio Amazon - Rio Apere Dr.), 6 km E Estación Biologica del Beni on rd. to San Ignacio, Beni, Bolivia
 |  UF_93341
 Rio Matos, 25 km E, 12 km S San Borja, Yacuma Province, Beni Departemento, Bolivia
 |  UF_93300
 Rio Tucavaca, 5 km NNE Candelaria, Chiquitos Province, Santa Cruz Departemento, Bolivia
 |  |  UF_93297
 Rio Tucavaca, Candelaria, Chiquitos Province, Santa Cruz Departemento, Bolivia
 |  UF_93307
 Rio Tucavaca, Candelaria, Chiquitos Province, Santa Cruz Departemento, Bolivia
 |  UF_93313
 Rio Uroguaito, 39 km E Concepcion, Nuflo de Chavez Province, Santa Cruz Departemento, Bolivia
 |  |  UF_93313
 Rio Uroguaito, 39 km E Concepcion, Nuflo de Chavez Province, Santa Cruz Departemento, Bolivia
 |  UF_93328
 Rio Zapacos, 3 km W Asencion, Nuflo de Chavez Province, Santa Cruz Departemento, Bolivia
 |  UF_93328
 Rio Zapacos, 3 km W Asencion, Nuflo de Chavez Province, Santa Cruz Departemento, Bolivia
 |  |  MNHN_MP_0403
 Santa Anna de Chiquitos, Bresil
 |  MNHN_MP_0414
 Santa Anna de Chiquitos, Bresil
 |  MNHN_MP_0414
 Santa Anna de Chiquitos, Bresil
 |  |  SMF_3801
 Sta. Cruz, Bolivien
 | 
 UF_93288. Bolivia, Santa Cruz Deptartemento, Chiquitos Province, Rio Tucavaca, Candelaria -18.5833333  -58.9833333 UF_93340. Rio Matos, 25 km E, 12 km S San Borja, Yacuma Province, Beni Departemento, Bolivia UF_93318. Rio Uroguaito, 39 km E Concepcion, Nuflo de Chavez Province, Santa Cruz Departemento, Bolivia UF_93327. Rio Zapacos, 3 km W Asencion, Nuflo de Chavez Province, Santa Cruz Departemento, Bolivia 
 Brazil|  SMF_12166
 A.d. Rio Itapicuru, Staat Bahia Brasilien
 |  BMNH_1902-9-2-35
 Amazon
 |  BMNH_1902-9-2-35
 Amazon
 |  |  CM_61.11134
 Amazon
 |  AMNH_61957
 Amazon River
 |  BMNH_MP_287
 Amazon River
 |  |  DMNH_81449
 Amazon River
 |  DMNH_81460
 Amazon River
 |  FMNH_21475
 Amazon River
 |  |  DMNH_173149
 Amazon River, Brazil
 |  DMNH_81461
 Amazon River, Brazil
 |  MCZ_MP.210
 Amazon River, South America
 |  |  UMMZ_112649
 Amazon, Brazil
 |  UMMZ_112649
 Amazon, Brazil
 |  SMF_168047
 Amazonas
 |  |  ZMB_MP_0127
 Amazonas
 |  USNM_172676
 Amazonas, Brazil
 |  USNM_172676
 Amazonas, Brazil
 |  |  SMF_168046
 Amazonen
 |  SMF_83012
 Amazonenstrom
 |  AMNH_31267
 Bahia
 |  |  AMNH_31268
 Bahia
 |  ZMB_MP_0120
 Bahia
 |  SMF_12163
 Bahia, Brasilien
 |  |  UF_270632
 Bahia, Brazil
 |  UF_270633
 Bahia, Brazil
 |  USNM_86793
 Bahia, Brazil
 |  |  SMF_12165
 Brasilien
 |  AMNH_30856
 Brazil
 |  AMNH_31269
 Brazil
 |  |  ANSP_125409
 Brazil
 |  ANSP_227103
 Brazil
 |  ANSP_41861
 Brazil
 |  |  ANSP_41897
 Brazil
 |  CM_61.2496
 Brazil
 |  DMNH_195045
 Brazil
 |  |  DMNH_81459
 Brazil
 |  MCZ_MP.209
 Brazil
 |  UF_270631
 Brazil
 |  |  UF_93190
 Brazil
 |  UF_93190
 Brazil
 |  UMMZ_112648
 Brazil
 |  |  UMMZ_112648
 Brazil
 |  USNM_86792
 Brazil
 |  USNM_273694
 Ceara, Brazil
 |  |  USNM_273694
 Ceara, Brazil
 |  SMF_12174
 Cidade de Barra, Rio Sao Francisco, Bahia, Bras.
 |  SMF_36721
 Lagoa da Felipa, Geb. de Rio Jaguaribe, bei Morada Nova, Staat Ceara, Bras.
 |  |  SMF_36722
 Lagoa da Felipa, Geb. de Rio Jaguaribe, bei Morada Nova, Staat Ceara, Bras.
 |  SMF_36724
 Lagoa da Felipa, Geb. de Rio Jaguaribe, bei Morada Nova, Staat Ceara, Bras.
 |  SMF_36724
 Lagoa da Felipa, Geb. de Rio Jaguaribe, bei Morada Nova, Staat Ceara, Bras.
 |  |  CM_61.5834
 Lagoa Salgado, Bahia, Brazil (drains to upp. Rio Salitre & R. São Francisco)
 |  ANSP_41898
 Paraná R., Brazil
 |  SMF_3798
 Rio Araguaya, Ilha do Bananal, Staat Goyaz, Brasilien
 |  |  SMF_3798
 Rio Araguaya, Ilha do Bananal, Staat Goyaz, Brasilien
 |  MCZ_186070
 Rio Gurgueia, Bom Jesus, Paiuhy, Brazil
 |  USNM_804423
 Rio Jutai, 4 km upstream from river mouth, Amazonas, Brazil
 |  |  SMF_3806
 Rio Paraguassu, Staat Bahia, Brasilien
 |  SMF_12164
 Rio Piracicaba, Staat Sao Paulo, Brasilien
 |  UMMZ_4397
 Rio Purús, Brazil
 |  |  UMMZ_4397
 Rio Purús, Brazil
 |  ZMB_MP_0094
 Rio San Francisco...Brasil
 |  BMNH_MP_368
 Rio Sao Francisco
 |  |  SMF_3799
 Rio Sao Francisco, b. Villa Nova, Staat Bahia, Brasilien
 |  SMF_3799
 Rio Sao Francisco, b. Villa Nova, Staat Bahia, Brasilien
 |  SMF_36719
 Rio Sao Francisco, bei Jatoba, Staat Pernamboco, Bras.
 |  |  FMNH_43781
 Xingu Alto, Jacare, Mato Grosso, Brazil
 | 
 SMF_83013. Amazonenstrom RMNH_327240. Bahia, Brazil ZMA_418510. Brasil, Amazone River ZMA_419600. Brasil, Salvador Also Bahia? Brazil D.. Mus. Nat. Hist. Geneve USNM_1239943. Brazil, Mato Grosso, Lagoa do rio Claro UF_518296. Brazil, Parana, Rio Iguacu, East of Foz de Iguacu UF_529127. Brazil, São Paulo, Near Presidente Epitacio INPA_906. Brazil: Amazonas: Iranduba: (Amazon - Negro): rio Negro: Catalão, entre o flutuante do INPA e a margem do rio Negro:  -3.14898   -59.91798 INPA_1122. Brazil: Amazonas: Iranduba: (Amazon - Negro): rio Negro: Catalão, praia na boca do paraná do lago Catalão:  -3.14833  -59.91833 INPA_927. Brazil: Amazonas: Iranduba: (Amazon - Negro): rio Negro: paraná do Xiborena, Catalão, margem direita do rio Negro, local 4:  -3.15222   -59.92353 INPA_283. Brazil: Amazonas: Novo Aripuanã: (Amazon - Madeira - Aripuanã): rio Aripuanã: -6.01048  -60.19523 INPA_1478. Brazil: Amazonas: Novo Aripuanã: (Amazon - Madeira - Aripuanã): rio Aripuanã: (05° 10’ 2.2” S,  60° 22’ 58.6” W) INPA_282. Brazil: Amazonas: Novo Aripuanã: (Amazon - Madeira - Aripuanã): rio Aripuanã: (06° 00’ 29.6” S,  60° 11’ 45.8” W):  -6.00823  -60.19606 INPA_281. Brazil: Amazonas: Novo Aripuanã: (Amazon - Madeira - Aripuanã): rio Aripuanã: (06° 00’ 42.3” S,  60° 11’ 42.7” W):  -6.01175  -60.19520 INPA_284. Brazil: Amazonas: Novo Aripuanã: (Amazon - Madeira - Aripuanã): rio Aripuanã: 1 Km acima de onde parou barco Amanaí II:  -6.17325  -60.22211 INPA_1133. Brazil: Amazonas: Novo Aripuanã: (Amazon - Madeira - Aripuanã): rio Aripuanã: abaixo da praia Pernambuco, percorridos aprox. 1000m:  -6.01809  -60.19431 INPA_1280. Brazil: Amazonas: Novo Aripuanã: (Amazon - Madeira - Aripuanã): rio Aripuanã: em frente à praia Pernambuco (06° 01’ 27.2” S,  60° 11’ 22.0” W):  -6.02423  -60.18945 INPA_1303. Brazil: Amazonas: Novo Aripuanã: (Amazon - Madeira - Aripuanã): rio Aripuanã: paraná da ilha do Mamão, margem direita do rio Aripuanã (06° 08’ 12.3” S,  60° 11’ 29.3” W):  -6.13676  -60.19147 PUCRS_MCP_9083. Brazil: Goias: São Miguel do Araguaia: (Tocantins - Araguaia)  PUCRS_MCP_8335. Brazil: Pará: Santana do Araguaia: (Tocantins - Araguaia): Lagoa da Mata: Rio Araguaia PUCRS_MCP_8507. Brazil: Paraíba: Patos: (Atlantic Ocean): rio Espinharas: na sede do Clube dos professores da UFRural de Patos:  -7.01775  -37.281944 PUCRS_MCP_8313. Brazil: Pernambuco: Pesqueiro: (Atlantic Ocean): rio Ipojuca: Bacia do Rio Ipojuca, Vegetação de Agreste PUCRS_MCP_8379. Brazil: Rio Grande do Sul: Bagé: (Río de la Plata - Uruguay - Negro): : Estação 1- Passo do Valente, Bacia do Rio Negro (afluente do curso inferior do Rio Uruguai), Municipio de Bagé:  -31.34622  -54.10355 PUCRS_MCP_8403. Brazil: Rio Grande do Sul: Porto Alegre: (Río de la Plata - Uruguay): Arroio Felizardo: Estação 6 PUCRS-Campus 2, Bacia do Arroio Felizardo, Afluente do Rio Uruguai, Municipio de Uruguaina PUCRS_MCP_5258. Brazil: Rio Grande do Sul: São Borja: (Rio de la Plata - Uruguay): : :  -28.62155  -56.03110 PUCRS_MCP_5381. Brazil: Rio Grande do Sul: São Borja: (Rio de la Plata - Uruguay): : :  -28.62155  -56.03110 INPA_188. Brazil: Rondônia: (Amazon - Madeira): rio Madeira: Usina Hidrelétrica Samuel, jusante, em frente vila São Carlos:  -9.30527  -64.69042 RMNH_327233. Brazile SMF_16724. Lagoa da Felipa, Geb. de Rio Jaguaribe, bei Morada Nova, Staat Ceara, Bras. 
 Ecuador
 Paraguay
 Peru|  ZMB_35613
 Achual Tipisca
 |  SMF_3802
 Huagabamba, O. Peru
 |  SMF_3802
 Huagabamba, O. Peru
 |  |  SMF_3803
 Huallaga, Peru
 |  FMNH_216465
 Laguna Yarinacocha, near Pucallpa, Peru
 |  USNM_25981
 Maranon, Brazil
 |  |  UMMZ_112651
 Maranon, Peru
 |  UMMZ_112651
 Maranon, Peru
 |  UMMZ_112645
 Maranon, Peru, South America
 |  |  UMMZ_112645
 Maranon, Peru, South America
 |  CM_61.1550
 Maranon, Upper Amazonas
 |  MNHN_MP_0550
 Perou [or] Chili
 |  |  MCZ_MP.216
 Peru
 |  MUSM_MP_007
 Peru: Pucallpa, Yarinacocha
 |  FMNH_114176
 Rio Calleria, Colonia Calleria, 15 km from Ucayali, Loreto, Peru
 |  |  UF_29442
 Rio Caterpiza, Caterpiza, Amazonas, Peru
 |  INHS_19819
 Rio Itaya, 11 km (39° bearing) SSE center of Iquitos, Loreto, Peru
 |  ANSP_416344
 Rio Itaya, ca. 100 minutes upstream above Puerto Belen, Iquitos by canoe w/ longshaft motor, Dept. Loreto, Peru. 3° 49’ 59” S; 73° 18’ 07” W
 |  |  ANSP_416344
 Rio Itaya, ca. 100 minutes upstream above Puerto Belen, Iquitos by canoe w/ longshaft motor, Dept. Loreto, Peru. 3° 49’ 59” S; 73° 18’ 07” W
 |  ANSP_416344
 Rio Itaya, ca. 100 minutes upstream above Puerto Belen, Iquitos by canoe w/ longshaft motor, Dept. Loreto, Peru. 3° 49’ 59” S; 73° 18’ 07” W
 |  DMNH_173148
 Rio Maranon, Peru
 |  |  DMNH_173151
 Rio Maranon, Peru
 |  FMNH_216464
 Rio Neshuya, trib. of Rio Aguaytia, Ucayali Basin, Peru
 |  SMF_162032
 Rio Neshuya, trib. of Rio Aguaytia, Ucayali Basin, Peru
 |  |  AMNH_89121
 Rio Ucayali, Peru
 |  AMNH_89124
 Rio Ucayali, Peru
 |  ANSP_125410
 River Maranon
 |  |  ANSP_125410
 River Maranon
 |  ANSP_125412
 River Maranon
 |  ANSP_125412
 River Maranon
 |  |  ANSP_125405
 River Maranon, Amazon
 |  BMNH_MP_278
 River Maranon, Santa Cruz, Bolivia
 |  ZMB_MP_0087
 Ucayali
 |  |  ZMB_MP_0087
 Ucayali
 |  ZMB_MP_0092
 Ucayali
 |  USNM_86791
 Upper Amazon, Maranon, Brazil
 |  |  ZMB_69752
 Yarincocha, Teseram See [?] am Ucayali
 | 
 
 Suriname
 unknown
 Uruguay|  SMF_12178
 Arroyo de Don Esteban, Dept. Rio Negro, Uruguay
 |  UMMZ_248905
 Arroyo del Bote, Departmento de Rio Negro, Uruguay
 |  UMMZ_248905
 Arroyo del Bote, Departmento de Rio Negro, Uruguay
 |  |  USNM_180767
 Arroyo Esteban, Rio Negro, Uruguay
 |  USNM_180767
 Arroyo Esteban, Rio Negro, Uruguay
 |  USNM_380505
 Dept. Paysandu, Uruguay
 |  |  USNM_380505
 Dept. Paysandu, Uruguay
 |  SMF_12176
 Montevideo, Uruguay
 |  AMNH_146583
 R. Negro, Tacuarembo, Uruguay
 |  |  AMS_126860
 Rio Cuareim, Paso Layado, Depto. Artigas, Uruguay
 |  USNM_361674
 Rio Dayman, Salto, Uruguay
 |  USNM_270903
 Rio Negro, Tacuarembo, Uruguay
 |  |  SMF_12175
 Tacuarembo, Uruguay
 | 
 NCSM_30099. Uruguay, Florida, Yi River [Rio Yi], providence. Florida, [point estimated city of Sauce del Yi.]-33.366  -55.627 
 Uruguay, Argentina, or BrazilGeoreferenced Genbank Vouchers
 PeruANSP_416344. (28S: JN243865, COI: JN243887, go to Genbank) Rio Itaya, ca. 100 minutes upstream above Puerto Belen, Iquitos by canoe w/ longshaft motor, Dept. Loreto, Peru. 3° 49’ 59” S; 73° 18’ 07” W. |