Thalassiosira aestivalis- Thalassiosira angulata
- Thalassiosira angustelineata
- Thalassiosira antarctica
- Thalassiosira antiqua
- Thalassiosira australis
- Thalassiosira bramaputrae
- Thalassiosira bulbosa
- Thalassiosira cardiophora
- Thalassiosira cedarkeyensis
- Thalassiosira condensata
- Thalassiosira conferta
- Thalassiosira constricta
- Thalassiosira decipiens
- Thalassiosira delicatula
- Thalassiosira desannulla
- Thalassiosira diporocyclus
- Thalassiosira duostra
- Thalassiosira eccentrica
- Thalassiosira endoseriata
- Thalassiosira exigua
- Thalassiosira fasciculata
- Thalassiosira ferelineata
- Thalassiosira frenguelliopsis
- Thalassiosira gracilis
- Thalassiosira gravida
- Thalassiosira guillardii
- Thalassiosira hendeyi
- Thalassiosira hyalina
- Thalassiosira hydra
- Thalassiosira lentiginosa
- Thalassiosira leptopus
- Thalassiosira livingstonorum
- Thalassiosira longissima
- Thalassiosira lundiana
- Thalassiosira mediterranea
- Thalassiosira mendiolana
- Thalassiosira minima
- Thalassiosira minuscula
- Thalassiosira nodulolineata
- Thalassiosira nordenskioeldii
- Thalassiosira nordienskioeldi
- Thalassiosira oceanica
- Thalassiosira oliveriana
- Thalassiosira oranica
- Thalassiosira pacifica
- Thalassiosira partheneis
- Thalassiosira poroirregulata
- Thalassiosira primalabiata
- Thalassiosira pseudonana
- Thalassiosira punctigera
- Thalassiosira rotula
- Thalassiosira simonsenii
- Thalassiosira striata
- Thalassiosira subtilis
- Thalassiosira symmetrica
- Thalassiosira tenera
- Thalassiosira trifulta
- Thalassiosira tumida
- Thalassiosira visurgis
- Thalassiosira vulnifica
- Thalassiosira webbi
- Thalassiosira weissflogii
- Thalassiosira wongii