Hyriopsis bialatus C.T. Simpson, 1900 Thailand119 mm
Epioblasma biemarginata I. Lea, 1857 Alabama, Florence
Pseudobaphia biesiana (P.M. Heude, 1877) China, Ning-kouo-hien
Lanceolaria bilirata (E.C. Von Martens, 1902) Japan, Lake Biwa
Lampsilis binominata C.T. Simpson, 1900 Georgia, Muscogee County
Nkondonaia bisulcata (FOSSIL) D. Van Damme& G.E. Pickford, 2010 † Uganda
Lamprotula blaisei (H. Fischer& P. Dautzenberg, 1905) Vietnam, Tonkin
Pseudodon bogani Bolotov, Kondakov& Konopleva, 2017
Lanceolaria bogani N.N. Thach, 2016
Radiatula bonneaudi (J.F.T. Eydoux, 1838) Myanmar, Irrawadi
Ctenodesma borneensis (A. Issel, 1874) Malaysia, Borneo
Lampsilis bracteata A.A. Gould, 1855 USA, Texas
Lamellidens brandti Bolotov, Konopleva& Vikhrev, 2017
Inversidens brandtii (W. Kobelt, 1879) Japan
Dysnomia brevidens (I. Lea, 1831) Alabama43 mm
Coelatura briarti (P. Dautzenberg, 1901) Congo, Pointe Noire
Unio brightoni (FOSSIL) Woodward † UK, Dorset
Unionetta broti (G.P. Deshayes& A. Jullien, 1874) Cambodia
Fusconaia burkei (A.E. Ortmann& B. Walker, 1922) Alabama, Dale County
Parreysia burmana W.T. Blanford, 1869 Myanmar, Irawaddy River
Grandidieria burtoni (S. Woodward, 1859) Lake Tanganyika
Grandidieria burtoni corbicula J.R. Bourguignat, 1885 Lake Tanganyika
Grandidieria burtoni cyrenopsis J.R. Bourguignat, 1885 Lake Tanganyika
Grandidieria burtoni elongata J.R. Bourguignat, 1885 Lake Tanganyika
Grandidieria burtoni giraudi J.R. Bourguignat, 1885 Lake Tanganyika
Grandidieria burtoni granulosa J.R. Bourguignat, 1885 Lake Tanganyika
Grandidieria burtoni gravida J.R. Bourguignat, 1885 Lake Tanganyika
Grandidieria burtoni incarnata J.R. Bourguignat, 1885 Lake Tanganyika
Grandidieria burtoni insignis C.M.F. Ancey, 1885 Lake Tanganyika
Grandidieria burtoni locardiana J.R. Bourguignat, 1885 Lake Tanganyika17 mm
Grandidieria burtoni mira J.R. Bourguignat, 1885 Lake Tanganyika
Grandidieria burtoni rhynchonella J.R. Bourguignat, 1888 Lake Tanganyika
Grandidieria burtoni rostrata J.R. Bourguignat, 1885 Lake Tanganyika
Grandidieria burtoni rotundata J.R. Bourguignat, 1885 Lake Tanganyika
Grandidieria burtoni servainiana J.R. Bourguignat, 1885 Lake Tanganyika