a dinoflagellate with an flagellum circling the middle and a flagella on the posterior end

A dinoflagellate cell type in which two flagella are inserted ventrally; one flagellum is transverse and housed in a cingulum and the other is longitudinal and housed in a sulcus. A dinokont dinoflagellate can be a thecate species (with thecal plates) or an athecate species (without thecal plates)(Steidinger & Tangen 1996).