Sundaya bargibanti Cecalupo & Perugia, 2017
Cerithiopsis barleei J.G. Jeffreys, 1867 Italy, Chioggia5 mm
Horologica barrieria A. Nützel, 1998 New Caledonia, Koumac2,4 mm
Synthopsis battagliai A. Cecalupo & I. Perugia,2012 Philippines, Punta Engano2,4 mm
Joculator bauquisi Cecalupo & Perugia, 2017
Marshallopsis bazzocchii A. Cecalupo & I. Perugia,2014 Marquesas Islands2 mm
Seila beauforti C. Thiriot-Quiévreux,1980 Belize
Belonimorphis belonimorphis M. Jay & J. Drivas, 2002 Réunion6 mm
Cerithiopsis beneitoi (E. Rolán, J. Espinosa& R. Fernández-Garcés, 2007) Cuba
Dizoniopsis benoitiana (T.A. de M. Monterosato,1869) Italy
Prolixodens benthica B.A. Marshall, 1978 New Zealand, Three Kings Islands
Onchodia benthica (W.H. Dall, 1924)
Cerithiopsis benthicum W.H. Dall, 1927 Italy, Chioggia
Cerithiopsis berryi P. Bartsch, 1911 Italy, Chioggia
Clathropsis berthaultorum Cecalupo & Perugia, 2017
Clathropsis bicarinata (C.F. Laseron, 1951) New South Wales
Synthopsis bicincta A. Cecalupo & I. Perugia,2012 Philippines, Balicasag Island
Joculator bicinctus A. Cecalupo & I. Perugia,2012 Philippines, Mactan Island2,5 mm
Cerithiopsis bicolor P. Bartsch, 1911 Galapagos
Horologica bicolor C.F. Laseron, 1956 Réunion2,1 mm
Retilaskeya bicolor (Adams, 1845) Bahamas9 mm
Dizoniopsis bilineata (R. Hoernes, 1848) Spain4 mm
Cerithiopsis bimarginatum (C.B. Adams, 1852) Mexico, Point Abreojos
Horologica bipartita C.F. Laseron, 1956 Korea
Cerithiopsidella blacki B.A. Marshall, 1978 New Zealand
Marshallopsis blanda A. Cecalupo & I. Perugia,2012 Philippines, Panglao Island2,2 mm
Cerithiopsis blandi G.P. Deshayes, 1900 Réunion
Cerithiopsis boelsschei (A. von Koenen, 1891) Mexico, Point Abreojos
Synthopsis bongiardinoi A. Cecalupo & I. Perugia,2012 Philippines, Panglao Island2,8 mm
Cerithiopsis boucheti M. Jay & J. Drivas, 2002 Réunion
Marshallopsis boucheti A. Cecalupo & I. Perugia,2012 Philippines, Panglao Island2,2 mm
Joculator bourgeoisae A. Cecalupo & I. Perugia,2013 Vanuatu Island, New Hebrides2,1 mm
Joculator bouteti A. Cecalupo & I. Perugia,2014 French Polynesia, Rapa Iti Island1,67 mm
Tubercliopsis bowenensis C.F. Laseron, 1956 Queensland
Joculator brabantae A. Cecalupo & I. Perugia,2013 Vanuatu Island, New Hebrides2,2 mm