Plate P27. Diatoms from Sample 178-1103A-23R-CC. 1. Thalassiosira oliverana group?. 2. Thalassiosira striata. 3. Thalassiosira cf. Thalassiosira inura, central part. 4. Thalassiosira vulnifica. 5. Actinocyclus karstenii. 6. Eucampia antarctica. 7. Thalassiosira tetraoestrupii. 8. Thalassiosira oestrupii. 9. Actinocyclus karstenii. 10.Chaetoceros sp., resting spore. 11. Navicula sp. 12. Cocconeis sp. cf. Cocconeis californica.