| 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! 
					Search the database pages: 
 Bivalvia | Unionoida | Unionoidea | Unionidae | Ambleminae | Popenaiadini | Nephronaias species Nephronaias flucki Bartsch, 1906: specimens1 available nominal species synonym
 Recent Taxonomic OpinionsSphenonaias flucki — Graf & Cummings (2007), Bogan (2010), Graf & Cummings (2021)Nephronaias flucki — Cummings et al. (2025)
 RangeNicaragua. Map of Georeferenced Specimens
 Nicaragua|  MCZ_MP_283
 1 league [3 miles] NW Chimandega, Nicaragua
 |  USNM_186121
 Nicaragua
 |  USNM_186121
 Nicaragua
 |  |  UMMZ_108014
 Rio Coco, Nicaragua
 |  MCZ_MP_281
 Rio Suha, near Realejo, Chinandega Prov., Nicaragua
 |  UF_270353
 Rio Wanko, Nicaragua
 |  |  MCZ_MP_284
 small river which passes thru Viejo 2 leagues NW Chimandega, Dept., Nicaragua
 |  MCZ_137220
 Wanks River (Segovia R.) near Wasla, Nicaragua
 |  MCZ_167986
 Wanks River (Segovia R.) near Wasla, Nicaragua
 |  |  UMMZ_107994
 Wanks River, near Wasla, Nicaragua
 |  UMMZ_107985
 Wanks River, Nicaragua
 |  UMMZ_107985
 Wanks River, Nicaragua
 |  |  UF_499
 Wanks River, Wasala, Nicaragua
 |  MCZ_167993
 Waspuc River, Nicaragua
 |  MCZ_167991
 Wounta [= Kukalaya] River NW of Kukalaya, Nicaragua
 |  |  ANSP_97585
 Wounta [= Kukalaya] River, NW of Kukalaya, Nicaragua
 | 
 |