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Data last updated
Mon 1 Dec 2025
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Bivalvia
| Unionoida
| Hyrioidea
| Hyriidae
| Hyriinae
| Rhipidodontini
| Diplodon
species Diplodon delodontus (Lamarck, 1819): specimens10 available nominal species synonyms (14 total synonyms)
Recent Taxonomic Opinions
Diplodon delodontus — Graf & Cummings (2007), Bogan (2010), Mansur et al. (2020), Graf & Cummings (2021) Diplodon (s.s.) delodontus delodontus — Rumi et al. (2008) Diplodon (s.s.) delodontus — Pereira et al. (2014), Torres et al. (2018) Diplodon delodonta — Torres et al. (2024)
Range
Widespread in the Paraná System, and Atlantic Coastal streams in southern Brazil and Uruguay.
Map of Georeferenced Specimens
MUSSELp Specimen Records
ZMA_419663. La Plata
Argentina
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 DMNH_78611 Acassuso, Buenos Aires, Argentina
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 SMF_163523 Argentinien; Laguna de Vargas, dremaje del Arroyo Malabrigo, Romang, Prov Santa Fe
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 BMNH_1922-8-23-88-89 Arroyo Conchillas, prov. Buenos Aires, Argentina
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 ZMB_64160 Arroyo Conchillas, prov. Buenos Aires, Argentina
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 MCZ_111736 Arroyo Conchitas, Argentina
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 MNHN_MP_0966 Arroyo Conchitas, prov. Bs. Aires, R.A.
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 ANSP_324644 Arroyo del Rio Parana, Santa Fe, Argentina
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 ANSP_324644 Arroyo del Rio Parana, Santa Fe, Argentina
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 AMS_126877 Arroyo el Chileno, Buenos Aires, Argentina
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 UMMZ_186192 Arroyo Las Tunas (between Benavidez and Gral. Pacheco stations) near to the intersection with the road Buenos Aires-Campana, Prov. Buenos Aires, Argentina
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 UMMZ_186192 Arroyo Las Tunas (between Benavidez and Gral. Pacheco stations) near to the intersection with the road Buenos Aires-Campana, Prov. Buenos Aires, Argentina
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 UMMZ_186192 Arroyo Las Tunas (between Benavidez and Gral. Pacheco stations) near to the intersection with the road Buenos Aires-Campana, Prov. Buenos Aires, Argentina
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 CM_61.72 Arroyo Los Pozos, 8 km above R. Matanzas, Buenos Aires, Argentina
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 UMMZ_184813 Arroyo Los Pozos, 8 km above R. Matanzas, Buenos Aires, Argentina
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 UMMZ_184813 Arroyo Los Pozos, 8 km above R. Matanzas, Buenos Aires, Argentina
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 UMMZ_184813 Arroyo Los Pozos, 8 km above R. Matanzas, Buenos Aires, Argentina
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 UF_159740 Arroyo Perucho Verna, 15 km N of Colon, Entre Rios, Argentina
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 CM_MP_25 Arroyo Urquiza, between Concepcion del Uruguay and Colon, Entre Rios, Argentina
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 BMNH_54-9-4-46 Buenos Ayres, Plata
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 MCZ_212452 Isla Bieri, 20 km al S De Puerto Malabrigo, Departmento de de San Javier, Pcia de Santa Fe, Argentina
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 ANSP_41879 La Plata
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 ZMB_25044 La Plata
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 ZMB_25044 La Plata
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 BMNH_MP_030 La Plata, Buenos Aires
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 FMNH_46095 Lagoon on Bieri Island, between Rios Parana and San Javier, 60 km S of Reconquista, Santa Fe, Argentina
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 FMNH_44557 Lagoons of Arroyo Malabrigo, northern Santa Fe Province, Argentina
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 UMMZ_248836 Laguna del Arroyo Malabrigo, Pcia. de Santa Fe, Argentina
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 UMMZ_248836 Laguna del Arroyo Malabrigo, Pcia. de Santa Fe, Argentina
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 MCZ_212448 Laguna del Arroyo Malabrigo, Romang, Departmento de San Javier, Pcia. de Santa Fe, Argentina
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 CM_66.93 Laguna Guadalupe, Santa Fe, Argentina
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 CM_MP_29 Laguna Setubal, near Puente Colgante, Santa Fe, Argentina
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 CM_61.69 Las Tunas (Gal. Pacheco), Buenos Aires
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 ZMB_42318 Lujan, Argentina
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 ZMB_42318 Lujan, Argentina
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 SMF_14080 Pesquerias Zarate, R. Argentina
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 SMF_11088 Prov. Buenos Aires, Arg.
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 SMF_168319 Prov. Buenos Aires, Brasilien [Argentina]
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 FMNH_17218 Puerto Nuevo, Buenos Aires, Argentina
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 SMF_11084 Riachuelo, [Río Matanza-Riachuelo] Rio de la Plata, Argentinien
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 SMF_11083 Riachuelo, Argentinien [Río Matanza-Riachuelo, Río de la Plata]
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 BMNH_54-9-4-42 Rio Balel, Corrientes
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 FMNH_50722 Rio Chapadmalal, near Chapadmalal, Prov. Buenos Aires, Argentina
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 SMF_11086 Rio de La Plata
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 UMMZ_111269 Rio de la Plata
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 UMMZ_111269 Rio de la Plata
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 UMMZ_111269 Rio de la Plata
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 USNM_85337 Rio de la Plata, S. Am.
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 USNM_85337 Rio de la Plata, S. Am.
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 USNM_85337 Rio de la Plata, S. Am.
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 UF_159737 Rio Gualeguaychu, 8 km W Caseros, 32 km W Concepcion Del Uruguay, Entre Rios, Argentina
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 FMNH_21823 Rio Matanzas, Prov. Buenos Aires, Argentina
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 SMF_11085 Rio Paraná, Argentinien
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 ANSP_125600 Rio Plata
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 MNHN_MP_0969 rives d’ Uruguay, Concepcion, Province Entre Rios, Argentina
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 USNM_363027 Tigre R., Tigre, Argentina
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 USNM_363027 Tigre R., Tigre, Argentina
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 USNM_348794 Tigre River, Tigre, Argentina
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 USNM_348794 Tigre River, Tigre, Argentina
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 AMS_126878 Vargus Lagoon, San Javier River, trib. of Parana River, Santa Fe, Argentina
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ZMA_9049. Arroya Campichuela, San Vincente, Buenos Aires, Argentina ZMA_55629. Arroyo de la Cruz, Buenos Aires, Argentina
Brazil
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 FMNH_216449 Alegrete, Est. Rio Grande do Sul, Brazil
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 ZMB_MP_0377 Banhados do San Leopoldo & Barra G, Porto Alegre
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 ZMB_9377 Brasilien
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 AMNH_30928 Brazil
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 UF_270577 Brazil
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 UMMZ_110949 Brazil
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 UMMZ_110949 Brazil
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 UMMZ_110949 Brazil
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 UMMZ_111270 Brazil
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 UMMZ_111270 Brazil
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 UMMZ_111270 Brazil
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 UMMZ_23150 Brazil
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 UMMZ_23150 Brazil
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 UMMZ_23150 Brazil
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 USNM_162400 Camaguam, Brazil
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 UF_270600 near Port Alegre, Brazil
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 USNM_122300 Rio Camaguam, Brazil
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 ZMB_39380 Rio Camaguam, Rio Grande do Sul
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 UMMZ_111268 Rio Camaquam, Rio Grande do Sul, Brazil
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 UMMZ_111268 Rio Camaquam, Rio Grande do Sul, Brazil
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 UMMZ_111268 Rio Camaquam, Rio Grande do Sul, Brazil
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 ANSP_61802 Rio Camaquan, Brazil
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 ANSP_69451 Rio Camaquan, Rio Grande do Sul, Brazil
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 ANSP_69451 Rio Camaquan, Rio Grande do Sul, Brazil
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 ZMB_MP_0258 Rio Grande do Sul
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 UMMZ_111903 Rio Guahyba, Porto Alegre, Rio Grande do Sul, Brazil
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 UMMZ_111903 Rio Guahyba, Porto Alegre, Rio Grande do Sul, Brazil
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 UMMZ_111903 Rio Guahyba, Porto Alegre, Rio Grande do Sul, Brazil
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 UMMZ_111847 Rio Jacuí, Cachoeira, Rio Grande do Sul, Brazil
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 UMMZ_111847 Rio Jacuí, Cachoeira, Rio Grande do Sul, Brazil
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 UMMZ_111847 Rio Jacuí, Cachoeira, Rio Grande do Sul, Brazil
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 ZMB_MP_0237 Sudl Brasilien, Fl Jacuhy
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 ZMB_MP_0378 Taguara
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 ZMB_MP_0374 Taguara, Brasil
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PUCRS_MCP_8380. Brazil: Rio Grande do Sul: Aceguá: (Río de la Plata - Uruguay): Estação 2- Colônia Nova, Rio Jaguarão (Bacia da Lagoa Mirim), Municipio de Aceguá PUCRS_MCP_10084. Brazil: Rio Grande do Sul: Aranbaré: (Atlantic Ocean - Logoa Dos Patos - Camaquã): Arroio Velhaco: -30.90433 -51.49904 PUCRS_MCP_10086. Brazil: Rio Grande do Sul: Aranbaré: (Atlantic Ocean - Logoa Dos Patos - Camaquã): Arroio Velhaco: -30.90433 -51.49904 PUCRS_MCP_10088. Brazil: Rio Grande do Sul: Aranbaré: (Atlantic Ocean - Logoa Dos Patos - Camaquã): Arroio Velhaco: -30.90433 -51.49904 PUCRS_MCP_10091. Brazil: Rio Grande do Sul: Arroio Tigre: (Atlantic Ocean - Logoa Dos Patos - Guaíba - Jacuí - Jacuizinho) PUCRS_MCP_8376. 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_8123. Brazil: Rio Grande do Sul: Candiota: (Atlantic Ocean - Logoa Dos Patos - Lagoa Mirim - Yaguaron): rio Candiota: antes da desembocadura do arroio Poacá: -31.55697 -53.67065 PUCRS_MCP_8632. Brazil: Rio Grande do Sul: Palmares do Sul: (Atlantic Ocean - Logoa Dos Patos - Guaiba): Lagoa do Casamento: Saco do Cocurutu, lado sul do município: -30.03661 -51.21810 PUCRS_MCP_5161. Brazil: Rio Grande do Sul: Triunfo: (Atlantic Ocean - Logoa Dos Patos - Guaíba - Jacuí) PUCRS_MCP_5536. Brazil: Rio Grande do Sul: Triunfo: (Atlantic Ocean - Logoa Dos Patos - Guaíba - Jacuí) PUCRS_MCP_5540. Brazil: Rio Grande do Sul: Triunfo: (Atlantic Ocean - Logoa Dos Patos - Guaíba - Jacuí) PUCRS_MCP_8881. Brazil: Rio Grande do Sul: Triunfo: (Atlantic Ocean - Logoa Dos Patos - Guaíba - Jacuí): : Açude na propriedade do Senhor Orlando Vargas, Triunfo
Chile
ZMA_210694. Arr. Todos los Santos, Prov.de Buenos Aires, Argentina
Paraguay
unknown
MHNG-MOLL-50565. Unknown
Uruguay
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 SMF_164369 Ao Las Canas, Durazno, Uruguay
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 CM_64.79 Arroyo Artillero, Balneario, Santa Ana, Dto. Colonia, Uruguay
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 AMNH_141138 Arroyo Artilleros, Santan Ana, Colonia, Uruguay
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 AMNH_141138 Arroyo Artilleros, Santan Ana, Colonia, Uruguay
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 AMNH_143086 Arroyo Artilleros, Santan Ana, Colonia, Uruguay
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 AMNH_143086 Arroyo Artilleros, Santan Ana, Colonia, Uruguay
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 CM_MP_27 Arroyo Chipicuy, Paysandu, Uruguay
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 USNM_365399 Arroyo de las Vacas, Dept. Colonia, Uruguay
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 DMNH_78648 Arroyo del Rio Parana, Santa Fe, Uruguay
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 CM_MP_24 Arroyo Guaviyu, 50 km S of Salto and 25 E from the Uruguay River, Dept. of Paysandu, Uruguay
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 CM_64.78 Arroyo Malo, Paso las Correntinas, Dept. Paysandu, Uruguay
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 USNM_341374 Arroyo Manga, Dept. Montevideo, Uruguay
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 USNM_217115 Arroyo Miguelete, Montevideo, Uruguay
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 CM_64.74 Arroyo Miguelete, Puente Reginaldo Booth, Dept. Colonia, Uruguay
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 UMMZ_248834 Arroyo Monzon, Cardona, Departmento de Soriano, Uruguay
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 UMMZ_248834 Arroyo Monzon, Cardona, Departmento de Soriano, Uruguay
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 CM_MP_26 Arroyo Palacios, Entre Rios, Argentina
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 CM_MP_XX Arroyo Palacios, Entre Rios, Argentina
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 CM_MP_XX Arroyo Palacios, Entre Rios, Argentina
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 SBMHN_140862 Arroyo Porongos, Uruguay
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 INHS_24776 Arroyo San Francisco Grande, Uruguay
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 USNM_335765 Arroyo San Juan, Dept. Colonia, Uruguay
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 USNM_426420 Arroyo San Pedro, Dept. Colonia, Uruguay
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 USNM_335763 Arroyo Tacuarembo, Tacuarembo, Uruguay
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 USNM_381385 Arroyo Tomas, Durazno, Uruguay
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 USNM_381151 Artigas, Uruguay
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 USNM_381151 Artigas, Uruguay
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 USNM_382379 Canada del Queguay, Paysandu
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 USNM_382379 Canada del Queguay, Paysandu
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 USNM_368237 Canada Grande, Dept. Carro Largo, Uruguay
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 USNM_368237 Canada Grande, Dept. Carro Largo, Uruguay
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 USNM_854467 Canelon Grande, Dept. Canelones, Uruguay
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 USNM_346797 Colonia, Uruguay
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 USNM_383012 Colonia, Uruguay
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 FMNH_120424 Departmento de Paysandu, Uruguay
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 FMNH_120431 Departmento de Tacuarembo, Uruguay
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 USNM_380484 Dept. Florida, Uruguay
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 USNM_383015 Florida, Uruguay
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 ANSP_334568 Guaviyu Creek, 50 km S of Salto and 25 E from the Uruguay River, Dept. of Paysandu, Uruguay
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 ANSP_334568 Guaviyu Creek, 50 km S of Salto and 25 E from the Uruguay River, Dept. of Paysandu, Uruguay
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 FMNH_70742 Laguna de Arazati, San Jose, Uruguay
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 SBMHN_367461 Lagunas de Arazati, San Jose, Uruguay
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 USNM_335760 Maldonado, Uruguay
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 BMNH_54-9-4-44 Montevideo
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 BMNH_54-9-4-44 Montevideo
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 UF_270567 Montevideo, Uruguay
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 USNM_85162 Montevideo, Uruguay
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 USNM_85162 Montevideo, Uruguay
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 USNM_348266 Paso de San Borje [?], Rio Yi, Durazno, Uruguay
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 USNM_362850 Paysandu, Uruguay
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 USNM_424743 Paysandu, Uruguay
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 SMF_164372 Proc. Lagunas de Arazati, Departmento de San Jose, Uruguay
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 UMMZ_219689 Proc. Lagunas de Arazati, Departmento de San Jose, Uruguay
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 UMMZ_219693 Proc. Lagunas de Arazati, Departmento de San Jose, Uruguay
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 CM_MP_28 Queguay River, N of Paysandu, Uruguay
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 AMNH_146563 Rio Dayman, Paso Perico Moreno, Salto, Uruguay
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 DMNH_81463 Rio del Plata, Uruguay
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 USNM_335759 Rio Negro, Dept. Tacuarembo, Uruguay
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 USNM_346771 Rio Negro, Dept. Tacuarembo, Uruguay
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 USNM_270897 Rio Negro, Tacuarembo, Uruguay
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 USNM_347882 Rio Negro, Uruguay
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 AMNH_89888 Rio Olimar, 15 km de Treinta y Tres, Uruguay
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 MNHN_MP_0972 Rio Olimar, a 3 km ciudad de Treinta y Tres, Uruguay
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 UMMZ_248827 Rio Olimar, a 3 km ciudad de Treinta y Tres, Uruguay
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 UMMZ_248827 Rio Olimar, a 3 km ciudad de Treinta y Tres, Uruguay
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 FMNH_70747 Rio Olimar, Treinta y Tres, Uruguay
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 USNM_335758 Rio San Jose, Dept. San Jose, Uruguay
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 USNM_335764 Rio San Jose, Dept. San Jose, Uruguay
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 USNM_348785 Rio San Jose, near San Jose, Uruguay
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 ANSP_61798 Rio San Jose, Uruguay
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 MNHN_MP_0980 Rio San Salvador, Uruguay
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 USNM_468294 Rio Santa Lucia, Uruguay
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 USNM_380483 Rio Sta, Lucia, Dept. Canelones, Uruguay
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 SMF_11160 Rio Uruguay bei Salto Uruguay
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 USNM_322395 Rio Yi, Dept. Durazno, Uruguay
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 USNM_346767 Rio Yi, Dept. Durazno, Uruguay
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 USNM_464297 Soriano, Uruguay
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 USNM_202763 Uruguay
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 USNM_346813 Uruguay R., Nueva Palmira, Dept. Colonia, Uruguay
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ZMA_210603. Arroyo Sauce, Cebu, Prov.de Entre Rios, Argentina UF_539861. Artillero rivuet, Colonia, Uruguay
Uruguay, Argentina, or Brazil
Genbank Vouchers
There are no georeferenced Genbank vouchers for this species in the MUSSELpdb.
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