Membranous thecal extensions of armoured dinoflagellates (often associated with the cingulum and sulcus); some extensions are curved or ribbed.
Alternative form for list : flange.
Dinophysis caudata-cingular and sulcal lists. C=cingulum; LSL=left sulcal list; RSL=right sulcal list.
Dinophysis sacculus-cingular lists. ACL=anterior cingular list; PCL=posterior cingular list.