[1] Aeolidia loui can be easily identified by its large number of flattened cerata on its body except for a triangular area that extends from the rhinophores to the mid dorsum.

The cerata vary in color from grey to white and sometimes pink, orange, or green hues, depending on the species of anemone it has been feeding on.

[6] Zooxanthellae and zoochlorellae are endosymbiotic organisms found in many sea animals that fix carbon through the process of photosynthesis while contributing greatly to their host's growth.

Research has shown that these symbionts continue to perform high levels of photosynthesis and remain in Aeolidia loui’s cerata for as much as eleven days, translocating a significant amount of fixed carbon to the nudibranch's bodily tissues.

[6] A unique phenomenon displayed by Aeolidia loui has been studied, revealing an ability to prevent the species of anemone being preyed upon from discharging its nematocysts.