Flavundulator

Flavuswimmers in the Dass-Clarke Temperate Sea evolved to become sufficient swimmers once again through the evolution of a much more elaborate posterior fin, and have been replaced with the flavundulator. To aid this, the wing-like structures along their sides have been adapted to allow them to undulate, providing extra swimming power and great control, allowing them to "turn on a dime". They often crowd the surface of the water, where they continue their lifestyle of photosynthesis. Despite their increased ability to swim, they still have a problem dealing with the undertoes in certain locations of the sea. Their eyespots have grown primitive organelle "nerves" that focus the information obtained through them directly into the nucleus, increasing reaction speed. One final adaptation is three organelles, which now extend past the membrane itself. The outer portion of these have hardened into pointed spines, which can deter some of their potential tinier predators from consuming them successfully, although they don't regularly work on species far larger than they are.