About Thuridilla lineolata (Bergh, 1905)
This species, Thuridilla lineolata, can grow up to 3 centimeters in length. Part of its body is covered by the fold of its lateral parapodia. Its mantle is bright blue, and the edges of the parapodia are bordered by two lines: a fine black line, and an orange line on the outer edge. The smooth rhinophores and oral cavity also have a black line and an orange band marking. Thuridilla lineolata is found in the tropical West Pacific, with most occurrences in Indonesia and the Philippines. It inhabits the outer slope of coral reefs, the top of reefs, and lagoons.
