Photogoliathpseudopodia
Splitting from its ancestor who dwelled in the twilight depths of the LadyM ocean, the photogoliathpseudopodia has since come to call the warm, sunlit waters of the coast as their new home.
At some point in time, a supergoliathpseudopodia that had made its way into the coastal region attempted to consume a Photosagnia Luculentus it had come across. The process was not entirely successful, and the larger cell was unable to fully break down the smaller one. Instead, it wound up incorporating the organelles rich with photosynthetic pigments - which gives the Photosagnia luculentus its rich purple hue - into itself. A form of endosymbiosis had occurred here, which was further propagated via mitosis. Over time this mutation proved successful, as the descendants of this chance occurrence were able to spread quickly due by tapping into a new energy source via utilizing the rays of the sun itself. In fact, this led to the photogoliathpseudopodia being less reliant on hunting other cells - though they will still consume smaller, soft-bodied ones should they come across them - and instead relying more on consuming small particles of organic debris in order to help supplement their new diet.
In terms of behavior, the only major difference between this species and its ancestor is how it reacts to sunlight. During the day, they will slowly follow the sun, attempting to expose themselves to as much sunlight as they can, all awhile performing photosynthesis. At night, however, they rely more on being detritivores, and will take in oxygen and release carbon dioxide in contrast to their daylight activities, not unlike a proper flora. With few to no natural predators in their new habitats, they have exploded in terms of population, forming thick mats that cover entire sections of the seafloor in some places. Individuals in these "herds" do not pay much heed to one another, however, instead only coming together due to the shared circumstance of following the sun.