Bangia, Genus
Barentsia, Genus
Barnea, Genus
Belone, Genus
Belonidae, Familia
Beroe, Genus
Bicellariella, Genus
Bivalvia, Classis
Blenniidae, Familia
Blidingia, Genus
Bothidae, Familia
Botrylloides, Genus
Botryllus, Genus
Bougainvillia, Genus
Bowerbankia, Genus
Bryopsis, Genus
Buccinum, Genus
Buglossidium, Genus
Bugula, Genus