Belonella belone – synonym of Taonius pavo
Belonella pacifica pacifica – synonym of Taonius pavo
Blepharisma clarissimum – synonym of Anigsteinia clarissima
Blepharostoma pigerrima – synonym of Protocruzia pigerrima
Botryostrobus auritus/australis
Botryostrobus tumidulum – synonym of Botryostrobus aquilonaris
Buehringa antarcticum – synonym of Strombidium antarcticum
Bursaopsis quinquealata – synonym of Amphorellopsis quinquealata