219
PLANCHE IV
1-2: Thalassiossira eccentrica (Ehr) Cleve, 1903. 3: Actinocyclus tenellus Brebisson G-W.
Andrews, 1976. 4: Thalassionema nitzschioides (Grunow) Husted, 1932. 5-6: Actinoptychus
senarius (Ehr) 1843. 7-8: Thalassiossira sp.1 in Gardette D., 1979.
5
4
3
2
1
6
8
7