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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 rowellii (Lea, 1859): specimens
     1 available nominal species synonym

Recent Taxonomic Opinions

Nephronaias rowelliiGraf & Cummings (2007), Bogan (2010), Inoue et al. (2020), Graf & Cummings (2021), Cummings et al. (2025)

Range

Endemic to the Chagres Basin, Panama.

Map of Georeferenced Specimens

species map


Panama

specimen
USNM_84398

Chagres R., Panama

specimen
USNM_84398

Chagres R., Panama

specimen
USNM_151555

Chagres River, Colombia [Panama]

specimen
USNM_151555

Chagres River, Colombia [Panama]

specimen
ANSP_125625

Chagres River, New Grenada [Panama]

specimen
USNM_588899

Chagres River, nr. Gatuncillo, Panama

specimen
USNM_588899

Chagres River, nr. Gatuncillo, Panama

specimen
USNM_228673

Rio Chilibre, on trail from Cruces to Alajuela, Panama

specimen
USNM_228673

Rio Chilibre, on trail from Cruces to Alajuela, Panama

specimen
USNM_337653

Upper Trinidad River, Panama, SW Chagres R. drainage 80° W

specimen
USNM_337653

Upper Trinidad River, Panama, SW Chagres R. drainage 80° W