When viewed laterally species in the " Dinophysis " genus are laterally compressed with a cap-like epitheca and a much larger hypotheca although the size and shape of these species varies greatly due to their polymorphic life cycle.
12.
This means that one daughter cell is the same size as the parent ( epitheca and new hypotheca ) while in the other daughter the old hypotheca becomes the epitheca which together with a new and slightly smaller hypotheca comprises a smaller cell.
13.
This means that one daughter cell is the same size as the parent ( epitheca and new hypotheca ) while in the other daughter the old hypotheca becomes the epitheca which together with a new and slightly smaller hypotheca comprises a smaller cell.
14.
Centric diatoms are radially symmetrically and are composed of upper and lower valves ( " epitheca " and " hypotheca " ); each consisting of a valve and a girdle band that can easily slide underneath each other and expand to increase cell content over the diatoms progression.
