Plate P33. Diatoms from rise Site 1097. 1. Actinocyclus sp. cf. Actinocyclus actinochilus (Sample 178-1097A-35R-CC). 2. Actinocyclus sp. cf. Actinocyclus octonarius (Sample 178-1097A-34R-CC). 3. Hemidiscus? sp. (Sample 1097A-35R-CC). 4, 5. Thalassiosira spp. (Sample 178-1097A-35R-CC). 6. Azpeitia gombosii? (Sample 178-1097A-34R-CC). 7. Actinocyclus sp. aff. octonarius (Sample 178-1097A-35R-CC). 8. Thalassiosira oliverana s.s. (Sample 178-1097A-34R-CC). 9. Thalassiosira sp. cf. Thalassiosira oliverana var. sparsa (Sample 178-1097A-34R-CC).