Bairdia minna Sars, 1866 – synonym of Macrocypris minna
Bathyporeia elegans Crawford, 1937 – synonym of Bathyporeia tenuipes
Bathyporeia gracilis Norman, 1900 – synonym of Bathyporeia tenuipes
Bathyporeia norvegica Sars, 1891 – synonym of Bathyporeia guilliamsoniana
Bathyporeia pilosa Bate, 1862 – synonym of Bathyporeia guilliamsoniana
Bathyporeia robertsoni Bate, 1862 – synonym of Bathyporeia pilosa
Bellia arenaria Bate, 1851 – synonym of Haustorius arenarius
Bopyrus squillarum Sars, 1899 – synonym of Bopyrus fougerouxi
Boreophausia inermis G.O. Sars 1886 – synonym of Thysanoessa inermis
Boreophausia raschii Norman, 1886 – synonym of Thysanoessa raschii
Bythocythere acuminata Sars, 1866 – synonym of Jonesia acuminata
Bythocythere constricta Brady, 1868 – synonym of Bythocythere zetlandica
Bythocythere tenuissimum Norman, 1869 – synonym of Paradoxostoma tenuissimum
Bythocythere turgida Brady, 1868 – synonym of Bythocythere robinsoni