Term Name:	dinoflagellate sulcus
Synonyms:	longitudinal furrow, longitudinal groove, sulcus
Definition:	A cell surface furrow that occurs on the ventral side of a dinoflagellate cell. It partially houses the longitudinal flagellum. The sulcus intersects with the cingulum on the ventral side of a dinoflagellate cell.
Ontology:	GO: Cellular Component [GO:0097612]    QuickGO    AmiGO