Babelomurex lischkeanus (Lischkean coral-snail)
Badepigrus badius (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 (Whan’s 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 chiton)
Bassina pachyphylla (faintly-frilled venus)
Bathoxiphus colmani (Colman’s tusk-shell)
Batillariella estuarina (estuarine mud-creeper)
Bedeva paivae (mussel drill)
Belloliva brazieri (Brazier’s olive)
Belloliva leucozona (white-zoned olive)
Belloliva triticea (wheat olive)
Bembicium auratum (estuarine conniwink)
Bembicium melanostoma (black-mouth conniwink)
Bembicium nanum (striped conniwink)
Benthoxystus columnarius (Cape Pillar trophon)
Berthella medietas (mid-point sea-slug)
Borniola lepida (scaly lepton)
Borniola radiata (radiate lepton)
Bostrycapulus pretzgeri (Pretzger’s slipper-limpet)
Botelloides bassianus (Bassian top-shell)
Botelloides sulcatus (furrowed top-shell)
Bouchetriphora pallida (pallid sinistral-creeper)
Brachidontes erosus (eroded beaked-mussel)
Brachioteuthis riisei (Riise’s squid)
Brookula angeli (Angel’s false-top-shell)
Brookula crebresculpta (engraved false-top-shell)
Brookula nepeanensis (Point Nepean false-top-shell)
Brucetriphora granifera (grainy sinistral-creeper)
Buccipagoda kengrahami (Kengraham’s whelk)
Bulla quoyii (Botany Bay bubble-shell)
Bullina lineata (lined bubble-shell)
Burnaia helicochorda (spirally-chorded sea-slug)