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Page last updated
Wed 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!

Search the database pages:

Bivalvia | Unionoida | Unionoidea | Unionidae | Ambleminae | Popenaiadini | Nephronaias

species Nephronaias goascoranensis (Lea, 1858): specimens
     5 available nominal species synonyms (8 total synonyms)

Recent Taxonomic Opinions

Nephronaias goascoranensisGraf & Cummings (2007), Bogan (2010), Graf & Cummings (2021), Czaja et al. (2023), Cummings et al. (2025)
Nephronaias championiGraf & Cummings (2007), Bogan (2010), Graf & Cummings (2021)
Nephronaias lempensisGraf & Cummings (2007), Bogan (2010), Graf & Cummings (2021)

Range

Guatemala to Nicaragua.

Map of Georeferenced Specimens

species map


El Salvador

specimen
USNM_360387

L. Guija, San Salvador

specimen
UF_426965

Lago de Guija, 8.5 km WSW Metapan, Santa Anna Department, El Salvador 14.302, -89.519

specimen
USNM_426016

Laguna de Guija, S. Salvador

specimen
USNM_426016

Laguna de Guija, S. Salvador

specimen
USNM_426018

Laguna de Guija, S. Salvador

specimen
USNM_426018

Laguna de Guija, S. Salvador

specimen
USNM_361764

Rio Lempe at R.R. Bridge, Salvador

specimen
USNM_361764

Rio Lempe at R.R. Bridge, Salvador

specimen
USNM_347898

Rio Paz, near Ahuachapan, Salvador

specimen
USNM_347898

Rio Paz, near Ahuachapan, Salvador


Guatemala

specimen
SMF_3486

Paso Antonio, Rio Michatoya, W. Guatemala

specimen
BMNH_1901-6-22-1538-1539

Paso San Antonio, Guatemala

specimen
ZMB_220174

Paso San Antonio, in the Pacific Coast Region, Guatemala

specimen
ZMB_220174

Paso San Antonio, in the Pacific Coast Region, Guatemala

specimen
FMNH_16557

Rio Chiquimula, Departmento de Zacapa, Guatemala

specimen
ZMB_108851

Rio Michatoya, bei Paso San Antonio, Guatemala

specimen
ZMB_108851

Rio Michatoya, bei Paso San Antonio, Guatemala

specimen
ZMB_220175

Rio Michatoya, bei Paso San Antonio, Guatemala

specimen
ZMB_220175

Rio Michatoya, bei Paso San Antonio, Guatemala

specimen
ZMB_MP_0509

Rio Michatoya, Paso San Antonio, Guatemala

specimen
ZMB_MP_0509

Rio Michatoya, Paso San Antonio, Guatemala

specimen
ZMB_220176

Rio Naranjo, a confluent of the Rio Michatoya at the station of Naranjo


Honduras

specimen
UF_24781

6 km W Comay, Comayagua Valley, Orillas de Humaya, Honduras

specimen
USNM_84411

Comayagua, Honduras

specimen
USNM_84411

Comayagua, Honduras

specimen
USNM_85086

Goascoran R., Honduras

specimen
ANSP_129957

Goascoran River, Honduras

specimen
UF_270372

Honduras

specimen
UF_270384

Honduras

specimen
UMMZ_107991

Honduras

specimen
USNM_84410

Honduras

specimen
USNM_84410

Honduras

specimen
BMNH_1954-6-2-1453-1455

Humuya River, Honduras

specimen
UMMZ_107979

Pactuca River, Honduras

specimen
USNM_152965

Patook [=Patuca] River, Capunta, Honduras

specimen
UF_270385

Patook River, Honduras

specimen
UF_20621

Rio Humuya, 7 km NW Comayagua, Valle de Comayagua, Honduras

specimen
USNM_819898

Rio Humuya, Comayagua, Honduras

specimen
UF_221125

Rio Ulua, 1 km SW Pimienta, Cortez, Department, Honduras

USNM_193020.


Mexico

specimen
MNHN_MP_1370

Laguna de Dolores, Mexique

specimen
UMMZ_107978

Mexico

specimen
MNHN_MP_1377

Oaxaca, Mexico

specimen
NCSM_5816

Rio Perros, 4.9 km SSE Ixtepec, Oaxaca, Mexico

specimen
NCSM_MFM_19203

Rio Perros, 4.9 km SSE Ixtepec, Oaxaca, Mexico

specimen
NCSM_MFM_19204

Rio Perros, 4.9 km SSE Ixtepec, Oaxaca, Mexico

specimen
NCSM_62217

Rio Tehuantepec, 0.8 [air] kilometers above [NNE center] Tehuantepec

specimen
UMMZ_107977

Southern Mexico

specimen
AMNH_30269

Tehuantepec

specimen
ZMB_MP_0510

Tehuantepec

specimen
UF_231214

Tehuantepec River, Tehuantepec, Oaxaca, Mexico

specimen
MCZ_361571

Tehuantepec, Oaxaca, Mexico


Nicaragua

specimen
BMNH_1907-12-30-52

Columbia River, Oregon

specimen
USNM_84399

Estero Real, G. of Fonseca, Nicaragua

specimen
USNM_84399

Estero Real, G. of Fonseca, Nicaragua

specimen
USNM_84399

Estero Real, G. of Fonseca, Nicaragua

specimen
MCZ_21172

Estero Real, Gulf of Fonseca, Nicaragua

specimen
ANSP_125626

Estero Real, Nicaragua

specimen
ANSP_125626

Estero Real, Nicaragua

specimen
UF_229378

Estero Real, Nicaragua

specimen
UF_229378

Estero Real, Nicaragua

specimen
USNM_24021

L. Nicaragua

specimen
AMNH_121381

Laguna de Jiloa, Managua, Managua

specimen
CM_61.1467

Lake Nicaragua

specimen
CM_61.1468

Lake Nicaragua

specimen
CM_61.1468

Lake Nicaragua

specimen
UMMZ_107973

Lake Nicaragua, Nicaragua

specimen
ANSP_129958

Malacatoya River, Central America

specimen
AMS_126891

Nicaragua

specimen
ANSP_125624

Nicaragua

specimen
FMNH_22258

Nicaragua

specimen
UF_270375

Nicaragua

specimen
UMMZ_107956

Nicaragua

specimen
UMMZ_107967

Nicaragua

specimen
UMMZ_107972

Nicaragua

specimen
USNM_59872

Nicaragua

specimen
USNM_59887

Nicaragua

specimen
USNM_73065

Nicaragua

specimen
USNM_73065

Nicaragua

specimen
USNM_792455

Nicaragua

specimen
USNM_792455

Nicaragua

specimen
USNM_792456

Nicaragua

specimen
USNM_792456

Nicaragua

specimen
USNM_792457

Nicaragua

specimen
USNM_792457

Nicaragua

specimen
ZMB_MP_0520

Nicaragua

specimen
USNM_84400

River Malacatoya, Central America

specimen
MCZ_6590

San Areniene, Nicaragua

specimen
MCZ_21168

small stream passing though Viego [Viejo] and San Geronimo, Nicaragua


unknown

specimen
FMNH_21983

[no locality available - Central America]

specimen
MCZ_MP_289

[no locality available - Central America]

specimen
UMMZ_107966

[no locality available - Central America]

specimen
ZMB_MP_0525

[no locality available - Central America]