Montenegrospeum bogici (V.M. Pešic & P. Glöer,2012) Montenegro2,3 mm
Phreatica bolei F. Velkovrh, 1970 Italy, Udine
Turricaspia boltovskoji (A.N. Golikov& Y.I. Starobogatov, 1966)
Islamia bomangiana H.D. Boeters& G. Falkner, 2003 France
Belgrandia bonelliana C. De Stefani, 1879 Italy, Siena
Hydrobia booneae J.P.E. Morrison, 1954
Turricaspia borceana (A.N. Golikov& Y.I. Starobogatov, 1966)
Caspiohydrobia borealis S.I. Andreeva& E.N. Frolova, 1989 Kazakhstan, Amankaragaj
Bythiospeum bormanni F.J. Stojaspal, 1978 Europe
Motsametia borutzkii (V.I. Zhadin, 1932) Caucasus
Euxinipyrgula borysthenica (T.L. Alexenko& Y.I. Starobogatov, 1987) Ukraine, Dnieper river
Belgrandia boscae (J.M. Salvañá, 1887) Spain, Valencia
Dabriana bosniaca (P. Radoman, 1973) Italy
Islamia bosniaca P. Radoman, 1973 Bosnia and Herzegovina
Radomaniola bosniaca (P. Radoman, 1973) Bosnia
Iglica bosnica H. Schütt, 1975 Bosnia and Herzegovina
Lanzaia bosnica J. Bole, 1970 Bosnia and Herzegovina
Turricaspia bosphorana (FOSSIL) (N.I. Andrusov, 1890 †)
Pyrgula boteniensis (FOSSIL) W.A. Wenz, 1942 †
Paludestrema bottimeri (B. Walker, 1925) USA. Virginia
Pseudamnicola boucheti P. Glöer, S. Bouzid& H.D. Boeters, 2010 Algeria
Prososthenia bouei (FOSSIL) P.S. Pavlovic, 1931 †
Fissuria boui H.D. Boeters, 1981 Cerbere, France
Bythiospeum bourguignati (A. Paladilhe, 1866) France
Avenionia bourguignati É.A.A. Locard, 1883 Netherland, Maastricht
Islamia bourguignati (A. Letourneux, 1869) France
Mercuria bourguignati P. Glöer, S. Bouzid& H.D. Boeters, 2010 Algeria
Bythiospeum bournense H. Girardi, 2009 France
Beddomeia bowryensis W.F. Ponder & K.B. Clark,1993 Tasmania, Waratah
Belgrandiella bozidarcurcici P. Glöer & V.M. Pešic,2014
Alzoniella braccoensis M. Bodon& S. Cianfanelli, 2004 Italy, Appenniino Ligure
Pseudamnicola brachia (C.A. Westerlund, 1886) Greece
Hydrobia bradleyi (FOSSIL) Hislop, 1859 †
Pyrgulopsis brandi (M. Drake, 1953) Chihuahua, Mexico
Saxurinator brandti H. Schütt, 1968 Bosnia and Herzegovina