Babelomurex lischkeanus (Lischkean coral-shell)
Badepigrus badia (dark brown false rice-shell)
Badepigrus pupoides (chrysalis-like false rice-shell)
Badepigrus semicinctus (semigirdled false rice-shell)
Balanetta microscopica (microscopic margin-shell)
Balanetta whani (Whans margin-shell)
Bankia australis (Southern shipworm)
Bankia neztalia (neztalia shipworm)
Bankivia fasciata (banded kelp-shell)
Barbatia metella (metella ark-shell)
Barbatia pistachia (hairy ark-shell)
Barbatia reticulata (scaly ark-shell)
Barnea obturamentum (tongue-shaped angel-wing)
Bassethullia glypta (marked acantho chiton)
Bassina pachyphylla (faintly-frilled venus-clam)
Bathoxiphus colmani (Colmans tusk-shell)
Batillariella estuarina (Lawleys creeper)
Bedeva paivae (mussel drill)
Belloliva brazieri (Braziers olive-shell)
Belloliva leucozona (white-zoned olive-shell)
Belloliva triticea (wheat olive-shell)
Bembicium auratum (gold-mouth conniwink)
Bembicium melanostomum (black-mouth conniwink)
Bembicium nanum (striped-mouth conniwink)
Benthoxystus columnarius (Cape Pillar trophon-shell)
Berthella medietas (medietas berthella sea-slug)
Birostra maccoyi (maccoys spindle-cowrie)
Borniola lepida (scaly lepton-clam)
Borniola radiata (radiate lepton-clam)
Bostrycapulus pretzgeri (Pretzgers slipper-limpet)
Botelloides bassianus (Bass top-shell)
Botelloides sulcatus (sulcate top-shell)
Bouchetriphora pallida (pallid sinistral-creeper)
Brachidontes erosus (eroded beaked mussel)
Brachioteuthis riisei (Riises squid)
Brookula angeli (Angels false top-shell)
Brookula crebresculpta (crebresculpta false top-shell)
Brookula nepeanensis (Nepean false top-shell)
Brucetriphora granifera (grainy sinistral-creeper)
Buccipagoda kengrahami (Kengrahams whelk)
Bulla quoyii (Botany Bay bubble-shell)
Bullina lineata (lineate bubble-shell)
Burnaia helicochorda (spirally-chorded burnaia sea-slug)