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freshwater mussels
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Geography

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freshwater mussels
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Data last updated
Thu 22 January 2026

Bivalvia | Unionida | Etherioidea | Etheriidae | Bartlettia

species Bartlettia stefanensis (Moricand, 1856): specimens

2 available nominal species synonyms (6 total synonyms)

Recent Taxonomic Opinions

Bartlettia stefanensis — Graf & Cummings (2007), Bogan (2010), IUCN (2011), Pereira et al. (2014), Mansur et al. (2020), Graf & Cummings (2021), Breure et al. (2022)

Range

Widespread in the Amazon Basin, from Brazil west to Ecuador and Peru, as well as the Rio Paraguay.

Map of Georeferenced Specimens

specimens map of Bartlettia stefanensis

MUSSELp Specimen Records

Bolivia

MNHN_MP_0377
Rio Quiquibey, Rechter Nebfluss von Beni about 5 km von der Mündung

Brazil

BMNH_MP_356 Amazon	UMMZ_23503 Amazon	UMMZ_23503 Amazon
MCZ_MP.256 Amazon	USNM_86802 Amazon R.	BMNH_96-7-8-17 Amazon River
BMNH_96-7-8-17 Amazon River	BMNH_MP_357 Amazon River	UMMZ_112674 Amazon River, Brazil
UMMZ_112674 Amazon River, Brazil	UMMZ_112674 Amazon River, Brazil	DMNH_173154 Amazon River, Brazil
SMF_12279 Amazonas	ZMB_112968 Amazonen Fluss

GEOLOGY DEPT. UNIVERSIDADE DE SãO PAULO.

PUCRS_MCP_9095. Brazil: Mato Grosso do Sul: (Río de la Plata - Paraná - Paraguay - Nioaque): rio Canindé: Nioaque [-21.126111: -55.831944]: -21.15962 -55.83710

PUCRS_MCP_9115. Brazil: Mato Grosso: Cuiabá: (Río de la Plata - Paraná - Paraguay - Sao Lourenco - Cuiabá): rio Cuiabá: Cuiabá [-15.583361: -56.090556]: -15.60734 -56.13760

Ecuador

FMNH_173045
Rio Cusuimi, Cusuimi, 150 km SE Puyo, Departmento de Pastaza, Ecuador; 2°50’S, 77°25’E

ANSP_125400
Rio Napo ? S. Am?

Paraguay

USNM_427990 Arojo Guazu, Colonia Independecia, Paraguay	USNM_427990 Arojo Guazu, Colonia Independecia, Paraguay	SMF_12280 Arojo Guazu, Colonia Independencia, Paraguay
USNM_467380 Arojo Guazu, Colonia Independencia, Villarica, Paraguay	USNM_467380 Arojo Guazu, Colonia Independencia, Villarica, Paraguay	MCZ_65676 Arojo Guazu, Colonia Independencia, Villarica, Paraguay
FMNH_120434 Arroyo Guazu, Paraguay	UF_93164 Carlos Pfanni, Paraguay	DMNH_150021 Carlos Pfanni, Paraguay
BMNH_MP_355 Colonia Independencia, Paraguay	FMNH_68082 Colonia Independencia, Paraguay	ZMB_77653 Colonia Independencia, Paraguay
IRSNB_MP_0430 Paraguay, Colonia Independencia	BMNH_1933-2-11-29-30 Tubicaury River, Villarica, Paraguay	MCZ_137132 Villarica, Paraguay
UF_45526 Villarrica, Guaira, Paraguay	UF_198488 Villarrica, Paraguay	AMNH_115765 Villarrica, Paraguay
DMNH_7142 Villarrica, Paraguay

Peru

SMF_4302 Amazonas, Mündung [Delta] Porte S.	SMF_4302 Amazonas, Mündung [Delta] Porte S.	BMNH_67-5-18-10 E. Peru
AMNH_89222 Ene River, Peru	ZMB_25664 Huallaga Fl., Peru	AMNH_89102 near the source of the Mapuya River, Peru
AMNH_89102 near the source of the Mapuya River, Peru	MCZ_225812 Quebrada Aguaytiillo, about 40 mi NW Agua Caliente, Huanuco, Peru	MUSM_MP_0012 rapids in Rio Las Piedras, 12° 4.167’ S, 69° 53.633 W, Peru
INHS_35130 Río Alto Yurúa (Río Amazon - Río Yurúa Dr.), above Brazilian border, just below mouth of quebrada, Ucayali, Peru, -9.43168, -72.74274	INHS_35130 Río Alto Yurúa (Río Amazon - Río Yurúa Dr.), above Brazilian border, just below mouth of quebrada, Ucayali, Peru, -9.43168, -72.74274	SMF_12278 Rio Amazonas, bei Pebas
SMF_148111 Rio Huallaga, Tocache, near Juanjui, Peru	FMNH_216466 Rio Huallaga, Tocache, near Juanjui, Peru	FMNH_47105 Rio Huallaga, Tocache, near Juanjui, Peru
DMNH_48581 Rio Huallaga, Tocache, near Juanjui, Peru	MCZ_225807 Rio Pachitea, near Isla Chonta, Agua Caliente, Huanuco, Peru	MCZ_MP.255 Rio Pachitea, near Puerto Inca, Ucayali River System, Loreto, Peru
ANSP_190650 Rio Pisqui, a branch of Rio Ucayali, Peru	ANSP_190650 Rio Pisqui, a branch of Rio Ucayali, Peru	UMMZ_191425 Rio San Alejandro, 40 mi NW Agua Caliente, Huanuco, Peru
UMMZ_191425 Rio San Alejandro, 40 mi NW Agua Caliente, Huanuco, Peru	AMNH_146520 Rio San Alejandro, 40 mi NW Agua Caliente, Huanuco, Peru	FMNH_70972 Rio San Alejandro, 40 mi NW Agua Caliente, Huanuco, Peru
UMMZ_233998 Rio San Alejandro, 40 mi NW Agua Caliente, Huanuco, Peru	UMMZ_233998 Rio San Alejandro, 40 mi NW Agua Caliente, Huanuco, Peru	MCZ_225813 Rio San Alejandro, 40 mi NW Agua Caliente, Huanuco, Peru
DMNH_48620 Rio San Alejandro, 40 mi NW Agua Caliente, Huanuco, Peru	DMNH_91451 Rio San Alejandro, 40 mi NW Agua Caliente, Huanuco, Peru	AMS_126905 Rio San Alejandro, about 40 mi NW Agua Caliente, Huanuco, Peru
UF_18064 Rio San Alejandro, about 40 mi NW Agua Caliente, Huanuco, Peru	USNM_656571 Rio San Alejandro, about 40 mi NW Agua Caliente, Huanuco, Peru	USNM_656571 Rio San Alejandro, about 40 mi NW Agua Caliente, Huanuco, Peru
ANSP_209281 Rio San Alejandro, about 40 mi NW Agua Caliente, Huanuco, Peru	SBMHN_5044 Rio San Alejandro, about 40 mi NW Agua Caliente, Huanuco, Peru	ZMB_105593 Rio San Alejandro, about 40 mi NW Agua Caliente, Huanuco, Peru
AMNH_89104 Rio Tambo, Peru	AMNH_89122 Rio Ucayali, Peru	AMNH_164733 Rio Ucayali, Peru