- Aulographis mohri
- Aulographis pandora
- Aulographis stellata
- Aulographis tetrancistra
- Aulographis tetrastyla
- Aulographis triangulum
- Aulographonium antarcticum
- Aulographonium anthoides
- Aulographonium bicorne
- Aulographonium candelabrum
- Aulographonium mediterraneum
- Aulographonium pulvinatum
- Aulokleptes flosculus
- Aulokleptes ramosus
- Auloscena pyramidalis
- Auloscena robustissima
- Auloscena verticillus
- Aulospathis pinus
- Aulospathis variabilis aulodendroides
- Aulospathis variabilis bifurca
- Aulospathis variabilis diodon
- Aulospathis variabilis triodon
- Aulosphaera bisternaria
- Aulosphaera elegantissima
- Aulosphaera filigera
- Aulosphaera labradoriensis
- Aulosphaera robusta
- Aulosphaera triodon
- Aulosphaera trispathis
- Aulosphaera verticillata
- Aurelia aurita
- Banareia palmeri
- Bargmannia elongata
- Bassia bassensis
- Bathochordaeus charon
- Bathothauma lyromma
- Bathycalanus eltaninae
- Bathycalanus inflatus
- Bathycalanus princeps
- Bathycalanus richardi
- Bathyplax typhla
- Bathypontia elongata
- Bathypontia sp.
- Bathystegocephalus globosus
- Bathyteuthis abyssicola
- Batoteuthis skolops
- Batrachonotus brasiliensis
- Bellia picta
- Benthuephausia ambylops
- Beroe cucumis