Fig. 7 in Bumps on the back: An unusual morphology in phylogenetically distinct Peridinium aff. cinctum (= Peridinium tuberosum; Peridiniales, Dinophyceae)

Fig. 7 Original material of Peridinium gatunense var. carinatum (Steinecke & Lindemann, 1923), note the bulges on the hypotheca and that the sulcus does not extend onto the epitheca. (1) Ventral view with two bulges on hypotheca. (2) Dorsal view with two bulges on hypotheca having comb-like flanges. (3) Apical view with asymmetrical plate pattern, as it is characteristic for the Peridinium cinctum species group (Moestrup & Calado, 2018)