Dirona albolineata, like others sea slugs genus Dirona, is translucent with large and broad cerata. The colour can be white,rose or pink. The cerata are white edged. All species genus Dirona are carnivores and feed on ascidians, bryozoans, small crustaceans, sea anemones and snails and other animals.
Dirona albolineata commonly know as White-lined Dirona can grow to 18,0 cm in length.Their egg mass contains about 350,000 eggs.