Peronaeus azulensis C. Fernández, 1970 Argentina22 mm
Bostryx baeri P. Dautzenberg, 1901 Peru13,6 mm
Drymaeus baezensis (J.G. Hidalgo, 1866) Ecuador30,5 mm
Drymaeus bahamensis L. Pfeiffer, 1862 Haiti
Rabdotus baileyi W.H. Dall, 1893 Mexico, Guaymas Sonora29,5 mm
Naesiotus bambamarcaensis W.K. Weyrauch, 1960 Peru, Cajamarca
Drymaeus baranguillanus (L. Pfeiffer, 1853) Colombia29,6 mm
Scutalus baroni (H.C. Fulton, 1896) Peru, Cajamarca25 mm
Drymaeus bartletti A. Adams, 1866 Peru28,5 mm
Drymaeus basitorus F. Haas, 1951 Peru
Naesiotus bauri W.H. Dall, 1893 Galapagos
Naesiotus beldingi (J.G. Cooper, 1892) Mexico, Baja California
Drymaeus bequaerti W.K. Weyrauch, 1956 Peru, Cajamarca
Bostryx bermudezae W.K. Weyrauch, 1958 Peru, Quichao19 mm
Auris bernardii L. Pfeiffer, 1856 Brazil, Bahia
Drymaeus beyerleanus L.H. Hupé, 1857 Peru
Drymaeus beyerleanus mitchelli W.H. Dall, 1912 Peru, Chinche
Naesiotus bicolor W.K. Weyrauch, 1967 Peru, Cuzco9,2 mm
Vermiculatus bicolor (G.B. I Sowerby, 1835) Peru23,6 mm
Oxychona bifasciata (E.J. Burrow, 1815) Brazil, Bahia15,3 mm
Auris bilabiata (W.J. Broderip& G.B. I Sowerby, 1829) Brazil, Bahia46,1 mm
Auris bilabiata egregia J.C. Jay, 1836 Brazil, Bahia
Auris bilabiata nigrilabris H.A. Pilsbry, 1896 Brazil, Bahia35,4 mm
Bostryx bilineatus (G.B. I Sowerby, 1833) Ecuador13 mm
Bostryx binghami W.H. Dall, 1910 Peru, Rio Pampas
Neopetraeus binneyanus (L. Pfeiffer, 1857) Peru21 mm
Rabdotus binneyanus W.G. Binney, 1859 Texas
Drymaeus binominis R.J.L. Guppy, 1868 Grenada22,1 mm
Bostryx birabeni M.I. Hylton-Scott, 1948 Argentina, Jujuy26,6 mm
Lissoacme birabenorum M.I. Hylton-Scott, 1948 Argentina, Tucuman18 mm
Bostryx bisculptus L. Pfeiffer, 1869 Peru18 mm
Drymaeus bivittatus (G.B. I Sowerby, 1833) Brazil, Amazon river19 mm
Oxychona blanchetiana (S. Moricand, 1833) Brazil
Drymaeus blandi H.A. Pilsbry, 1898 Ecuador
Naesiotus blombergi N.H. Odhner, 1951 Galapagos